從韓國出發，交叉解讀科技、經濟與社會https://letter.inlevel9.com/zh-TWhttps://letter.inlevel9.com/tw/issues/price-is-policy-not-cost/https://letter.inlevel9.com/tw/issues/price-is-policy-not-cost/AI 的成本正在下降，利潤率也大幅攀升了 50 個百分點。但我們支付的價格卻毫無變化。Mon, 31 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/default-tuned-for-scoreboard/https://letter.inlevel9.com/tw/issues/default-tuned-for-scoreboard/這是 Qwen 3.8 的預設設定所造成的 21 分鐘Sun, 30 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/ai-productivity-score-theater/https://letter.inlevel9.com/tw/issues/ai-productivity-score-theater/員工監控軟體公司 Insightful 的網站上掛著這樣一則客戶回饋： 導入初期生產力只有 70% 多，現在已經提升到 92%，而且員工會主動來問自己今天的分數是多少 。Sun, 30 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/stripe-bought-its-own-merchant/https://letter.inlevel9.com/tw/issues/stripe-bought-its-own-merchant/買下了 AI 支出上的過路費位置Sat, 29 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/what-nda-cost-kentucky/https://letter.inlevel9.com/tw/issues/what-nda-cost-kentucky/不是因為錢不夠，而是因為缺乏資訊Sat, 29 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/ai-memory-tiers-npu-future/https://letter.inlevel9.com/tw/issues/ai-memory-tiers-npu-future/我們從上週的一則新聞開始聊起。 彭博社 8 月 22 日援引消息人士報導，NVIDIA 已通知部分主要客戶，搭載 AI 晶片的伺服器價格將調漲超過 15%。Fri, 28 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/parameters-outside-the-gpu/https://letter.inlevel9.com/tw/issues/parameters-outside-the-gpu/捨棄 HBM 改置於 CPU 記憶體的查找表，Qwen4 的成本架構設計Fri, 28 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/agents-think-gpu-work-cpu/https://letter.inlevel9.com/tw/issues/agents-think-gpu-work-cpu/如果您曾經把任務交給 AI 代理程式，不妨回想一下。代理程式工作期間，畫面上發生了什麼事？它開啟瀏覽器、執行程式碼、整理檔案、閱讀搜尋結果。Thu, 27 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/why-legal-adopted-agents-first/https://letter.inlevel9.com/tw/issues/why-legal-adopted-agents-first/律師比開發者更早開啟 AI Agent 的原因Thu, 27 Aug 2026 03:47:08 GMTbusinesshttps://letter.inlevel9.com/tw/issues/identity-is-not-substitutability/https://letter.inlevel9.com/tw/issues/identity-is-not-substitutability/替換失效的地方，不是人，而是句子Thu, 27 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/link-rot-ai-citation-crisis/https://letter.inlevel9.com/tw/issues/link-rot-ai-citation-crisis/但那篇文章本身，28 年來一直待在同一个位址Wed, 26 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/free-helmet-invisible-data-labor/https://letter.inlevel9.com/tw/issues/free-helmet-invisible-data-labor/在印度，這些影片是花每小時 2.6 美元買來的Wed, 26 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/reports-taught-the-chatbot/https://letter.inlevel9.com/tw/issues/reports-taught-the-chatbot/《經濟學人》數了 120 萬個單字來驗證Tue, 25 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/twitch-shift-consent-mismatch/https://letter.inlevel9.com/tw/issues/twitch-shift-consent-mismatch/紐約的免費清潔，帳單該由誰買單？Mon, 24 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/1979-report-predictions/https://letter.inlevel9.com/tw/issues/1979-report-predictions/首都圈過密、房地產投機、地方式微。全都寫在裡面了Mon, 24 Aug 2026 02:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/google-button-without-follower-list/https://letter.inlevel9.com/tw/issues/google-button-without-follower-list/據說有 60 萬個來源被選入 AI 篩選的搜尋結果。但我們不知道有多少人按了那個按鈕Sun, 23 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/korea-leverage-etf-door-closed/https://letter.inlevel9.com/tw/issues/korea-leverage-etf-door-closed/金融委員會5月開的門，7月就關了Sun, 23 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/harvey-picks-chinese-model/https://letter.inlevel9.com/tw/issues/harvey-picks-chinese-model/兩個月、150 張 GPU。模型是消耗品，工作環境才成了資產Sat, 22 Aug 2026 14:51:29 GMTbusinesshttps://letter.inlevel9.com/tw/issues/nobody-uses-ai-agents/https://letter.inlevel9.com/tw/issues/nobody-uses-ai-agents/ChatGPT 有 9 億人，AI 代理只有 1,000 萬人Sat, 22 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/korea-ai-use-double-us/https://letter.inlevel9.com/tw/issues/korea-ai-use-double-us/全球使用最深度的國家，最先面對的提問Fri, 21 Aug 2026 02:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/ibm-openai-certified-consultants/https://letter.inlevel9.com/tw/issues/ibm-openai-certified-consultants/OpenAI 賣給他們的不是模型，而是資格Thu, 20 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/costco-millionaire-cashier/https://letter.inlevel9.com/tw/issues/costco-millionaire-cashier/公司已經留住了他40年。而那位員工早已是百萬富翁。Thu, 20 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/youth-caregiving-not-resting/https://letter.inlevel9.com/tw/issues/youth-caregiving-not-resting/當統計給他們貼上標籤的那一刻，診斷就已經結束了。Wed, 19 Aug 2026 02:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/label-died-not-the-trade/https://letter.inlevel9.com/tw/issues/label-died-not-the-trade/新的標籤裡多了 Anthropic、OpenAI、SpaceXTue, 18 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/cash-for-posts-kills-communities/https://letter.inlevel9.com/tw/issues/cash-for-posts-kills-communities/57萬人實驗找到的分岔路，是獎勵的可兌現性Tue, 18 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/smartphone-internet-467-119/https://letter.inlevel9.com/tw/issues/smartphone-internet-467-119/失敗的348人才是這項研究真正的發現。Mon, 17 Aug 2026 02:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/my-book-sold-for-656/https://letter.inlevel9.com/tw/issues/my-book-sold-for-656/下一份合約裡，連那筆版權費都可能拿不到了。Sun, 16 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/google-ninety-day-exit-clause/https://letter.inlevel9.com/tw/issues/google-ninety-day-exit-clause/SpaceX的財報近乎完美。除了那份合約書Sun, 16 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/microsoft-fde-6000-employees/https://letter.inlevel9.com/tw/issues/microsoft-fde-6000-employees/在裁員新聞層出不窮的同時，有一個職缺一年內招募量暴增了 10 倍Sat, 15 Aug 2026 02:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/why-midjourney-bought-astrology/https://letter.inlevel9.com/tw/issues/why-midjourney-bought-astrology/把這家公司今年買的東西串起來看，答案就清楚了Fri, 14 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/ai-detector-false-positives/https://letter.inlevel9.com/tw/issues/ai-detector-false-positives/誤判率最高 61%，寫得好的文章反而更危險的原因Fri, 14 Aug 2026 02:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/what-astra-threw-away/https://letter.inlevel9.com/tw/issues/what-astra-threw-away/OpenAI 的 Astra 丟掉了一份已完成的證明Thu, 13 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/goal-was-division-not-victory/https://letter.inlevel9.com/tw/issues/goal-was-division-not-victory/文在寅和尹錫悅都被同一批帳號罵過Thu, 13 Aug 2026 05:58:21 GMTbusinesshttps://letter.inlevel9.com/tw/issues/railway-king-dividend-ledger/https://letter.inlevel9.com/tw/issues/railway-king-dividend-ledger/火車確實開過。問題出在帳簿上。Thu, 13 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/text-has-no-empty-space/https://letter.inlevel9.com/tw/issues/text-has-no-empty-space/圖片我們大概懂原理，但文字到底要怎麼做呢？Wed, 12 Aug 2026 10:55:18 GMTbusinesshttps://letter.inlevel9.com/tw/issues/github-is-the-new-resume/https://letter.inlevel9.com/tw/issues/github-is-the-new-resume/因為投資人開始打開GitHub，而不是看學歷Wed, 12 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/why-google-picked-unbuilt-reactor/https://letter.inlevel9.com/tw/issues/why-google-picked-unbuilt-reactor/安全的選擇需要15年。所以沒有人會選它。Tue, 11 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/tailwind-ai-open-source-collapse/https://letter.inlevel9.com/tw/issues/tailwind-ai-open-source-collapse/下載量創歷史新高，營收卻蒸發了 80%。Tue, 11 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/ykk-asml-machine-moat/https://letter.inlevel9.com/tw/issues/ykk-asml-machine-moat/一家賣機器，另一家把機器藏起來Mon, 10 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/warsh-third-door-bond-market/https://letter.inlevel9.com/tw/issues/warsh-third-door-bond-market/還有第三扇門。而且債券市場已經為它標好了價格。Sun, 09 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/cloudflare-gave-agents-names/https://letter.inlevel9.com/tw/issues/cloudflare-gave-agents-names/入金功能還沒上線，但名字已經先開放了Sun, 09 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/meta-incident-response-ai/https://letter.inlevel9.com/tw/issues/meta-incident-response-ai/要讓 AI 接手工作，那項工作得先變成程式碼Sun, 09 Aug 2026 02:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/sandisk-four-year-nand-contracts/https://letter.inlevel9.com/tw/issues/sandisk-four-year-nand-contracts/客戶先掏出了 165 億美元的保證金Sat, 08 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/no-solo-unicorn-yet/https://letter.inlevel9.com/tw/issues/no-solo-unicorn-yet/預言落空了，但我們有了為成功故事打分的儀表板Sat, 08 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/worlds-most-famous-wrong-number/https://letter.inlevel9.com/tw/issues/worlds-most-famous-wrong-number/全球低估了2,000億，美國高估了2,000億Fri, 07 Aug 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/hourly-billing-ai-collapse/https://letter.inlevel9.com/tw/issues/hourly-billing-ai-collapse/出問題的從來不是個人的良心，而是計費單位。Fri, 07 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/why-teams-skip-maintenance/https://letter.inlevel9.com/tw/issues/why-teams-skip-maintenance/AI 能幫你寫程式碼，卻沒人給你修 Bug 的動機Thu, 06 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/open-weights-you-cant-run/https://letter.inlevel9.com/tw/issues/open-weights-you-cant-run/2.8 兆參數 Kimi K3 與「開放」的重新計算Wed, 05 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/dead-rabbits-living-invoice/https://letter.inlevel9.com/tw/issues/dead-rabbits-living-invoice/出於興趣上傳的 112 話翻譯，法院判定的賠償金額是 9,637 萬韓元Tue, 04 Aug 2026 08:33:21 GMTbusinesshttps://letter.inlevel9.com/tw/issues/fed-chair-startup-pitch/https://letter.inlevel9.com/tw/issues/fed-chair-startup-pitch/「數據還沒到，但很快就會來」——這種說法開始推動利率了Tue, 04 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/right-but-still-liquidated/https://letter.inlevel9.com/tw/issues/right-but-still-liquidated/上週韓股雲霄飛車的真兇另有其人Mon, 03 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/social-time-collapse/https://letter.inlevel9.com/tw/issues/social-time-collapse/修正分母後是 21%，真正的問題在戀愛統計之外Sun, 02 Aug 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/luddites-never-hated-the-machine/https://letter.inlevel9.com/tw/issues/luddites-never-hated-the-machine/如今 65% 的上班族所懷念的，其實也是同一件事Sat, 01 Aug 2026 02:30:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/musk-abundance-crash-day/https://letter.inlevel9.com/tw/issues/musk-abundance-crash-day/祖克柏的投書也在財報前一天刊出。這不是巧合。Fri, 31 Jul 2026 09:30:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/study-social-medias-harms/https://letter.inlevel9.com/tw/issues/study-social-medias-harms/阻擋研究者接入的代價，EU首次開罰Fri, 31 Jul 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/ai-needs-exams-not-benchmarks/https://letter.inlevel9.com/tw/issues/ai-needs-exams-not-benchmarks/六個系統宣稱滿分，但正式評分的只有兩個Thu, 30 Jul 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/harvard-chatgpt-novel-translation/https://letter.inlevel9.com/tw/issues/harvard-chatgpt-novel-translation/閱讀不會消失，而是正在分裂成閱讀的 20% 與不閱讀的 80%Thu, 30 Jul 2026 01:30:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/korea-chip-crash-two-fears/https://letter.inlevel9.com/tw/issues/korea-chip-crash-two-fears/需求恐慌與替代恐慌，兩種截然不同的恐懼交織而成的跌幅Wed, 29 Jul 2026 09:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/micro-influencer-payslip/https://letter.inlevel9.com/tw/issues/micro-influencer-payslip/用100位無名小咖取代1位明星，品牌的算法變了Wed, 29 Jul 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/verifier-bottleneck-half-right/https://letter.inlevel9.com/tw/issues/verifier-bottleneck-half-right/名字只是給問題貼上標籤。打造驗證者，仍然是你的功課。Tue, 28 Jul 2026 02:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/consent-without-asking/https://letter.inlevel9.com/tw/issues/consent-without-asking/打破禁忌的不是性能，而是正當性Mon, 27 Jul 2026 02:30:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/freelancer-ai-wage-squeeze/https://letter.inlevel9.com/tw/issues/freelancer-ai-wage-squeeze/打造 AI 的人，正在被 AI 壓低單價Mon, 27 Jul 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/ten-minutes-to-give-up/https://letter.inlevel9.com/tw/issues/ten-minutes-to-give-up/文字、計算機、Google，我們都一樣擔心過。但這次，底氣有點不同Sun, 26 Jul 2026 02:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/paper-wealth-illusion-sanfran-barter/https://letter.inlevel9.com/tw/issues/paper-wealth-illusion-sanfran-barter/新增財富中實體部分僅佔20%，填補這20%的合約今天登場Sat, 25 Jul 2026 02:30:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/homo-brainless-replicability/https://letter.inlevel9.com/tw/issues/homo-brainless-replicability/不是機器贏了大腦。是我們正在交出大腦。Sat, 25 Jul 2026 02:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/claude-knew-it-was-test/https://letter.inlevel9.com/tw/issues/claude-knew-it-was-test/當表面的答案與內心的想法不一致時，我們該看什麼？Fri, 24 Jul 2026 02:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/deepseek-restraint-as-negotiation-power/https://letter.inlevel9.com/tw/issues/deepseek-restraint-as-negotiation-power/'更想要的一方會輸'，這個悖論就是這筆交易的精髓Thu, 23 Jul 2026 14:25:41 GMTbusinesshttps://letter.inlevel9.com/tw/issues/stakeholder-map-chips-and-models/https://letter.inlevel9.com/tw/issues/stakeholder-map-chips-and-models/就在制裁警告發出當天的反駁，答案藏在英偉達的損益表裡Thu, 23 Jul 2026 04:43:20 GMTbusinesshttps://letter.inlevel9.com/tw/issues/china-ai-controls-self-sufficiency/https://letter.inlevel9.com/tw/issues/china-ai-controls-self-sufficiency/美國的封鎖反而加速了自主化Thu, 23 Jul 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/pension-crisis-korea-decade/https://letter.inlevel9.com/tw/issues/pension-crisis-korea-decade/歐洲花了30年才崩塌的危機，韓國將在10年內經歷Wed, 22 Jul 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/20260721-google-invoice-squeeze/https://letter.inlevel9.com/tw/issues/20260721-google-invoice-squeeze/模型競爭的衡量單位，正從「token 單價」轉向「每項任務的成本」Tue, 21 Jul 2026 16:01:37 GMTbusinesshttps://letter.inlevel9.com/tw/issues/rebuilding-the-apprenticeship/https://letter.inlevel9.com/tw/issues/rebuilding-the-apprenticeship/AI 取代了雜務，新人學習工作的階梯也消失了Tue, 21 Jul 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/thinking-muscle-10-minutes/https://letter.inlevel9.com/tw/issues/thinking-muscle-10-minutes/AI奪走的不是工作，而是思考力Mon, 20 Jul 2026 02:11:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/jevons-paradox-ai-market/https://letter.inlevel9.com/tw/issues/jevons-paradox-ai-market/價格崩盤，支出為何反而暴增？金融圈、科學家、企業家都在說同一句話。Sun, 19 Jul 2026 09:20:13 GMTbusinesshttps://letter.inlevel9.com/tw/issues/robot-training-data-ownership/https://letter.inlevel9.com/tw/issues/robot-training-data-ownership/中國擁有大腦，印度製造眼睛。但那些數據，歸誰所有？Sun, 19 Jul 2026 02:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/bci-3800-hours-speech/https://letter.inlevel9.com/tw/issues/bci-3800-hours-speech/三月我們借出了大腦，這次大腦找回了語言Sat, 18 Jul 2026 02:11:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/eu-3-euro-parcel-fee/https://letter.inlevel9.com/tw/issues/eu-3-euro-parcel-fee/襯衫、玩具、太陽眼鏡，歐盟的新算法Fri, 17 Jul 2026 02:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/big-tech-face-cameras/https://letter.inlevel9.com/tw/issues/big-tech-face-cameras/我們想要的是莎曼達，到來的卻是一雙監視你的眼睛。Thu, 16 Jul 2026 11:49:32 GMTai-techhttps://letter.inlevel9.com/tw/issues/subscription-dead-outcome-pricing/https://letter.inlevel9.com/tw/issues/subscription-dead-outcome-pricing/軟體代為完成工作的時代，價格表正在改變Thu, 16 Jul 2026 02:11:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/sovereign-ai-model-access/https://letter.inlevel9.com/tw/issues/sovereign-ai-model-access/晶片擋住了，模型卻擋不住。這就是主權 AI 的真實面貌。Wed, 15 Jul 2026 02:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/layoff-common-trait-gallup/https://letter.inlevel9.com/tw/issues/layoff-common-trait-gallup/蓋洛普 2.3 萬人調查，關鍵不在能力，而在態度Tue, 14 Jul 2026 02:11:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/youth-inactivity-health-gap/https://letter.inlevel9.com/tw/issues/youth-inactivity-health-gap/44%的英國青年不工作是因為健康問題。韓國則不同Mon, 13 Jul 2026 11:58:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/empty-office-mental-health-bill/https://letter.inlevel9.com/tw/issues/empty-office-mental-health-bill/58萬名居家辦公愛好者未曾察覺的心理健康代價Sun, 12 Jul 2026 02:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/geo-agency-logo-theft/https://letter.inlevel9.com/tw/issues/geo-agency-logo-theft/「保證曝光」與「掌控演算法」，這兩句話就是詐騙訊號Fri, 10 Jul 2026 02:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/power-bottleneck-gpu-era-limits/https://letter.inlevel9.com/tw/issues/power-bottleneck-gpu-era-limits/電力瓶頸正在提前終結「GPU 時代」。Wed, 08 Jul 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/prediction-market-fomo-scandal/https://letter.inlevel9.com/tw/issues/prediction-market-fomo-scandal/預測市場賣的不是透明度，而是FOMOMon, 06 Jul 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/meta-token-refinery-strategy/https://letter.inlevel9.com/tw/issues/meta-token-refinery-strategy/如果 Token 是新的石油，那下一步就是煉油廠Sat, 04 Jul 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/china-science-blind-spot/https://letter.inlevel9.com/tw/issues/china-science-blind-spot/西方科學家忽視中國論文的後果Thu, 02 Jul 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/china-japan-korea-800t/https://letter.inlevel9.com/tw/issues/china-japan-korea-800t/中國＝效率，日本＝指揮，韓國＝物理層Wed, 01 Jul 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/selling-fear-to-jobseekers/https://letter.inlevel9.com/tw/issues/selling-fear-to-jobseekers/一篇史丹佛論文如何成為恐懼商品的流通結構Tue, 30 Jun 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/talking-plant-ai/https://letter.inlevel9.com/tw/issues/talking-plant-ai/當我們能開口說話的那一刻，關係就開始了Mon, 29 Jun 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/data-leak-life-or-death/https://letter.inlevel9.com/tw/issues/data-leak-life-or-death/世界糧食計畫組織數據外洩，加薩難民面臨的處境Sun, 28 Jun 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/amazon-30k-layoff-hiring/https://letter.inlevel9.com/tw/issues/amazon-30k-layoff-hiring/員工操縱AI使用量排行榜所暴露的裂痕Sat, 27 Jun 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/picks-and-shovels-ai/https://letter.inlevel9.com/tw/issues/picks-and-shovels-ai/AI 代理時代，真正的錢流向了基礎設施Fri, 26 Jun 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/empty-strollers-380t/https://letter.inlevel9.com/tw/issues/empty-strollers-380t/全球托育費用最便宜的國家，生育率卻也最低Thu, 25 Jun 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/earthquake-alert-3-seconds/https://letter.inlevel9.com/tw/issues/earthquake-alert-3-seconds/沒有地震儀的國家，手機如何發出警報Thu, 25 Jun 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/salesforce-5t-acquisition/https://letter.inlevel9.com/tw/issues/salesforce-5t-acquisition/收購 Intercom 的真正目的是 30,000 個客戶Wed, 24 Jun 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/tokyo-ai-lab-exodus/https://letter.inlevel9.com/tw/issues/tokyo-ai-lab-exodus/選擇改善而非算力戰爭的研究所Tue, 23 Jun 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/fortune-chatbots-ai-rank/https://letter.inlevel9.com/tw/issues/fortune-chatbots-ai-rank/狂熱程度世界第一，模型差距 40%Mon, 22 Jun 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/signups-without-revenue/https://letter.inlevel9.com/tw/issues/signups-without-revenue/問題不在於郵件本身，而在於寄給誰Sat, 20 Jun 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/big4-fake-citations/https://letter.inlevel9.com/tw/issues/big4-fake-citations/27條註釋中有16條是假的。Thu, 18 Jun 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/apple-pays-google-why/https://letter.inlevel9.com/tw/issues/apple-pays-google-why/選擇了最大的部署，而非最強的模型Tue, 16 Jun 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/strongest-ai-dead-3-days/https://letter.inlevel9.com/tw/issues/strongest-ai-dead-3-days/1999 年電腦成了武器，2026 年 AI 模型也成了武器Sun, 14 Jun 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/mosquito-hunting-with-code/https://letter.inlevel9.com/tw/issues/mosquito-hunting-with-code/Google 養蚊子的原因Sat, 13 Jun 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/paper-to-short-video/https://letter.inlevel9.com/tw/issues/paper-to-short-video/創刊157年的科學期刊為何登上 TikTok？Thu, 11 Jun 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/135-dollar-rocket-bubble/https://letter.inlevel9.com/tw/issues/135-dollar-rocket-bubble/有人認為是半價，有人期待超過4倍Thu, 11 Jun 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/fax-office-automation-history/https://letter.inlevel9.com/tw/issues/fax-office-automation-history/主觀感受是3倍，客觀量測卻只有1.8%的既視感，當年文字處理機剛出現時也是一樣Wed, 10 Jun 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/un-population-miss-230k/https://letter.inlevel9.com/tw/issues/un-population-miss-230k/生育率下降的轉折點不是經濟危機，而是與智慧型手機普及的年份完全重疊Tue, 09 Jun 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/korea-app-regulation-alone/https://letter.inlevel9.com/tw/issues/korea-app-regulation-alone/7月起社群圖片全面掃描，費用全由業者負擔Mon, 08 Jun 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/teen-sns-ban-results/https://letter.inlevel9.com/tw/issues/teen-sns-ban-results/澳洲公布了禁止16歲以下社群媒體帳號的6個月執行結果Sun, 07 Jun 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/half-salary-on-tokens/https://letter.inlevel9.com/tw/issues/half-salary-on-tokens/Uber 四個月燒完一年預算後發生的事Sat, 06 Jun 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/ai-ate-content-zero-clicks/https://letter.inlevel9.com/tw/issues/ai-ate-content-zero-clicks/韓國內容創作者目前仍缺乏保護機制Fri, 05 Jun 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/thiel-nation-scale-experiment/https://letter.inlevel9.com/tw/issues/thiel-nation-scale-experiment/成為國際象棋第三名的億萬富翁的備選方案Wed, 03 Jun 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/100x-gap-same-company/https://letter.inlevel9.com/tw/issues/100x-gap-same-company/國民紅利、主權財富基金、連帶工資……三週內湧現了三張處方箋Mon, 01 Jun 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/founder-exit-ban-breakup/https://letter.inlevel9.com/tw/issues/founder-exit-ban-breakup/晶片戰爭的下一條前線是「AI 代理」Sat, 30 May 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/jensen-huang-asia-tour/https://letter.inlevel9.com/tw/issues/jensen-huang-asia-tour/三個首都、三個困境……走鋼索的代價開始浮現了Thu, 28 May 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/anthropic-copywriter-hire/https://letter.inlevel9.com/tw/issues/anthropic-copywriter-hire/AI 負責撰寫，但解讀與表達仍是人的本分Tue, 26 May 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/starbucks-pulls-ai/https://letter.inlevel9.com/tw/issues/starbucks-pulls-ai/承諾了99%的準確度，但現場的選擇還是人的雙手Mon, 25 May 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/pope-ai-encyclical/https://letter.inlevel9.com/tw/issues/pope-ai-encyclical/135 年前對工業革命提出的同一個問題，如今又回來了Sun, 24 May 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/search-food-chain-shift/https://letter.inlevel9.com/tw/issues/search-food-chain-shift/生態系的支配者正在重構自己的生態系Fri, 22 May 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/hotdog-lady-psychologist/https://letter.inlevel9.com/tw/issues/hotdog-lady-psychologist/幸福的鑰匙不在親近的人身上，而在每天擦肩而過的陌生面孔裡Wed, 20 May 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/red-crayfish-search-decline/https://letter.inlevel9.com/tw/issues/red-crayfish-search-decline/那些曾經遍地的龍蝦，都去哪了呢？Tue, 19 May 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/quadruped-robots-dmz/https://letter.inlevel9.com/tw/issues/quadruped-robots-dmz/"機器人啊，要不要一起衝完前半夜的崗，再噴點WD-40散散心？"Mon, 18 May 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/hidden-4gb-ai-model/https://letter.inlevel9.com/tw/issues/hidden-4gb-ai-model/以保護隱私為名、未經同意就安裝的 AI，這個矛盾意味著什麼Sat, 16 May 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/gated-cctv-inequality/https://letter.inlevel9.com/tw/issues/gated-cctv-inequality/如果安全可以購買，那代價該由誰來承擔？Thu, 14 May 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/revolutionary-core-satire/https://letter.inlevel9.com/tw/issues/revolutionary-core-satire/北韓能否自行開發人工智慧模型？Tue, 12 May 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/everyone-codes-now-what/https://letter.inlevel9.com/tw/issues/everyone-codes-now-what/當軟體變得免費，真正重要的是「為誰而打造」Fri, 08 May 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/subsea-cables-to-satellites/https://letter.inlevel9.com/tw/issues/subsea-cables-to-satellites/全球通信基礎設施的主導權，正從電信業者轉向大型科技企業Wed, 06 May 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/press-release-real-results/https://letter.inlevel9.com/tw/issues/press-release-real-results/「較前一年成長 500%」到底是在哪裡、用什麼方式測量的，我們通常並不知道Mon, 04 May 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/agents-end-friction-economy/https://letter.inlevel9.com/tw/issues/agents-end-friction-economy/取消訂閱要翻 4 頁、點 6 次，這煩躁背後的代價竟然高達每年 250 兆韓元Sun, 03 May 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/digital-touch-last-sense/https://letter.inlevel9.com/tw/issues/digital-touch-last-sense/智能不只存在於大腦中。真正的具身AI還沒有『鼻子』Sat, 02 May 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/meta-digital-tax-passthrough/https://letter.inlevel9.com/tw/issues/meta-digital-tax-passthrough/歐洲對科技巨頭課徵的稅，真正繳稅的卻是廣告主與消費者Fri, 01 May 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/musk-court-everyone-does-it/https://letter.inlevel9.com/tw/issues/musk-court-everyone-does-it/一直抨擊 DeepSeek 的美國科技巨頭，在自家國土上同樣是日常Fri, 01 May 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/ai-gender-pay-gap/https://letter.inlevel9.com/tw/issues/ai-gender-pay-gap/當決策交給機器的那一刻，偏差該由誰來負責？Thu, 30 Apr 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/us-army-esports-recruiting/https://letter.inlevel9.com/tw/issues/us-army-esports-recruiting/在學歷不再是唯一徵才標準的時代，第一場實驗從機場開始！Wed, 29 Apr 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/hancom-github-comeback/https://letter.inlevel9.com/tw/issues/hancom-github-comeback/35 年累積的文件的專業知識，首次被兌換成全球通用的貨幣。Wed, 29 Apr 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/business-plan-shelf-life/https://letter.inlevel9.com/tw/issues/business-plan-shelf-life/AI 改變的不是技術，而是「創業公式」本身Mon, 27 Apr 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/agent-negotiation-markets/https://letter.inlevel9.com/tw/issues/agent-negotiation-markets/資訊弱勢者將活在一個不知道自己正在虧損的世界裡Sun, 26 Apr 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/middle-managers-what-vanishes/https://letter.inlevel9.com/tw/issues/middle-managers-what-vanishes/職稱改變了，但經營的本質不會消失Sat, 25 Apr 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/bloomberg-terminal-lock-in/https://letter.inlevel9.com/tw/issues/bloomberg-terminal-lock-in/伊朗國會議長的推文中竟然附上了布隆伯格指令？Fri, 24 Apr 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/fentanyl-paper-crisis/https://letter.inlevel9.com/tw/issues/fentanyl-paper-crisis/監管邁出一步，非法化學卻已跑出十步Thu, 23 Apr 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/caviar-store-forgot-cheese/https://letter.inlevel9.com/tw/issues/caviar-store-forgot-cheese/Vision Pro 的失敗不是產品問題，而是以「效率」之名解構零售靈魂所付出的代價Wed, 22 Apr 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/maritime-toll-history/https://letter.inlevel9.com/tw/issues/maritime-toll-history/海洋本來就不是免費的。「自由航行」是數百年戰爭與談判後才形成的承諾Tue, 21 Apr 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/what-is-an-ai-harness/https://letter.inlevel9.com/tw/issues/what-is-an-ai-harness/Claude Code 洩密事件揭示的真相：模型效能差異不在智能，而在包裹模型的「外殼」？！Mon, 20 Apr 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/japan-robot-factories/https://letter.inlevel9.com/tw/issues/japan-robot-factories/日本的機器人策略不是為了效率，而是為了生存。而這份迫切，反而可能成為競爭力Sun, 19 Apr 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/ai-for-250m-merchants/https://letter.inlevel9.com/tw/issues/ai-for-250m-merchants/Meta 認為 AI 戰爭的關鍵不在大企業，而在街角的店铺经营者Sun, 19 Apr 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/teens-ai-conversations/https://letter.inlevel9.com/tw/issues/teens-ai-conversations/孩子會和人工智慧玩，是因為我們把青少年獨自留下來了Sat, 18 Apr 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/silent-users-talking-ai/https://letter.inlevel9.com/tw/issues/silent-users-talking-ai/社交媒體使用者中，已有一半不再發文。然而，AI正填補著這份沉默留下的空白Fri, 17 Apr 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/pet-care-leave-policy/https://letter.inlevel9.com/tw/issues/pet-care-leave-policy/義大利全球首創的「寵物病假」所提出的真正問題Thu, 16 Apr 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/chatgpt-advice-court-reversal/https://letter.inlevel9.com/tw/issues/chatgpt-advice-court-reversal/將判斷權委託給 AI 的 CEO 收到的帳單，不是 3,250 億韓元，而是信任Thu, 16 Apr 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/selling-time-after-ai/https://letter.inlevel9.com/tw/issues/selling-time-after-ai/兆美元法律產業的計費模式正在動搖Wed, 15 Apr 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/wuxia-cult-middle-east-oil/https://letter.inlevel9.com/tw/issues/wuxia-cult-middle-east-oil/三世紀波斯宗教演變為武俠小說中的魔教，而那團火焰點燃了二十世紀的石油產業Tue, 14 Apr 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/alibaba-token-hub/https://letter.inlevel9.com/tw/issues/alibaba-token-hub/當中國 AI 研究的理想與商業現實碰撞時Mon, 13 Apr 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/philosopher-declares-humanities-dead/https://letter.inlevel9.com/tw/issues/philosopher-declares-humanities-dead/世界不是搖搖板。一邊抬起，不代表另一邊就會跌到谷底。Mon, 13 Apr 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/hybrid-corn-diffusion-theory/https://letter.inlevel9.com/tw/issues/hybrid-corn-diffusion-theory/科技的節奏改變了，但人接受變化的結構從未改變Sun, 12 Apr 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/child-safety-law-internet/https://letter.inlevel9.com/tw/issues/child-safety-law-internet/兒童保護是真正的議題。但解決方案非得是把每個人的身分資訊刻進作業系統嗎？Sat, 11 Apr 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/us-cyber-strategy-7-pages/https://letter.inlevel9.com/tw/issues/us-cyber-strategy-7-pages/攻擊更猛烈，防禦更薄弱。這個矛盾為何不只是美國的問題Fri, 10 Apr 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/token-price-changes-everything/https://letter.inlevel9.com/tw/issues/token-price-changes-everything/不是開放模型變「夠用」了，而是能使用 AI 的團隊範圍正在改變。Fri, 10 Apr 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/mau-mrr-metrics-broken/https://letter.inlevel9.com/tw/issues/mau-mrr-metrics-broken/AI 公司所炫耀的「年營收」，不過是本月營收乘以 12 的數字罷了。Thu, 09 Apr 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/pm-role-boundary-collapse/https://letter.inlevel9.com/tw/issues/pm-role-boundary-collapse/不是600萬美元，而是一面30年的盾牌碎了Wed, 08 Apr 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/viewing-habits-personality/https://letter.inlevel9.com/tw/issues/viewing-habits-personality/透過閱讀品味來了解你的性格，就是從你看的內容來認識你Tue, 07 Apr 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/compliance-firm-breaks-rules/https://letter.inlevel9.com/tw/issues/compliance-firm-breaks-rules/YC 直接除名的 Delve 事件，對開源生態系與新創公司信任結構提出的質疑Mon, 06 Apr 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/valley-taste-talk-hides/https://letter.inlevel9.com/tw/issues/valley-taste-talk-hides/剩下的只是「選擇做什麼的能力」嗎？那真的是「品味」嗎？Sun, 05 Apr 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/what-people-want-from-ai/https://letter.inlevel9.com/tw/issues/what-people-want-from-ai/人們真正想要的，不是更快的業務，而是業務之外的生活Sat, 04 Apr 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/byd-5-minute-charging/https://letter.inlevel9.com/tw/issues/byd-5-minute-charging/問題不在於能否做出相同的技術，而在於是否擁有相同的結構Fri, 03 Apr 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/why-moon-again/https://letter.inlevel9.com/tw/issues/why-moon-again/重返月球不是技術問題，而是誰先制定規則的問題Thu, 02 Apr 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/garage-to-3-8-trillion/https://letter.inlevel9.com/tw/issues/garage-to-3-8-trillion/蘋果的50年不僅僅是一部企業成長史，更是一本教科書，展示了技術如何成為「生態系」，而生態系又如何成為「文化」Wed, 01 Apr 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/economists-ai-speed-quality/https://letter.inlevel9.com/tw/issues/economists-ai-speed-quality/真正的競爭在於「捕捉錯誤的速度」與「製造錯誤的速度」之間Tue, 31 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/phd-students-ai-era/https://letter.inlevel9.com/tw/issues/phd-students-ai-era/如果博士班應該培養的能力，AI 已經代勞了——那這個學位究竟證明了什麼？Mon, 30 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/arxiv-independence-35-years/https://letter.inlevel9.com/tw/issues/arxiv-independence-35-years/arXiv 將離開康奈爾大學。Sun, 29 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/semiconductor-deep-dive/https://letter.inlevel9.com/tw/issues/semiconductor-deep-dive/美國是發明半導體的國家。但現在，他們正在重新學習如何製造它。Sat, 28 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/journalism-by-metrics/https://letter.inlevel9.com/tw/issues/journalism-by-metrics/貝佐斯移植到《華盛頓郵報》的不是組織重組，而是亞馬遜的營運哲學Sat, 28 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/tiktok-10b-fee-receipt/https://letter.inlevel9.com/tw/issues/tiktok-10b-fee-receipt/美國政府將監管權力轉化為收益資產的實驗正全面展開Fri, 27 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/adobe-dark-pattern-settlement/https://letter.inlevel9.com/tw/issues/adobe-dark-pattern-settlement/"如果訂閱按鈕只需點一次，取消訂閱卻要點六次，那就不叫 UX，而是陷阱。"Thu, 26 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/memory-efficiency-stock-drop/https://letter.inlevel9.com/tw/issues/memory-efficiency-stock-drop/TurboQuant，谷歌的一個演算法動搖了記憶體股價Thu, 26 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/ai-tax-how-much/https://letter.inlevel9.com/tw/issues/ai-tax-how-much/對勞動課稅的時代正在終結。問題在於之後的事。Wed, 25 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/openai-five-launches-strategy/https://letter.inlevel9.com/tw/issues/openai-five-launches-strategy/Sora 不是失敗了——是 OpenAI「捨棄」了它Wed, 25 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/china-five-year-structure/https://letter.inlevel9.com/tw/issues/china-five-year-structure/速度的時代結束了。中國真正想改變的，是經濟的體質Tue, 24 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/profit-every-sale-underuse/https://letter.inlevel9.com/tw/issues/profit-every-sale-underuse/Perplexity 自豪的「正向毛利」，真的健康嗎？Tue, 24 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/sadvertising-mood-targeting/https://letter.inlevel9.com/tw/issues/sadvertising-mood-targeting/當情緒成為商品的那一刻，僅靠「保護未成年人」是不夠的Mon, 23 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/prepaid-cards-for-agents/https://letter.inlevel9.com/tw/issues/prepaid-cards-for-agents/把「錢包」交給人工智慧的時代已經開始了。問題不在技術，而在信任的設計Sun, 22 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/thousand-true-fans-risk/https://letter.inlevel9.com/tw/issues/thousand-true-fans-risk/決定成長的不是粉絲數量，而是觸達的結構Sat, 21 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/nvidia-gtc-2026-blueprint/https://letter.inlevel9.com/tw/issues/nvidia-gtc-2026-blueprint/1 兆美元的訂單能見度、200 億美元收購的成果，以及「Token 工廠」這個全新商業模式Fri, 20 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/ai-models-converging/https://letter.inlevel9.com/tw/issues/ai-models-converging/AI 越強大，我們的思想就越可能趨同——這是一個警訊Thu, 19 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/email-stamp-spam-fix/https://letter.inlevel9.com/tw/issues/email-stamp-spam-fix/在溝通成本歸零的世界裡，「注意力」已成為免費資源Wed, 18 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/brain-cannot-multitask/https://letter.inlevel9.com/tw/issues/brain-cannot-multitask/「練習就能同時做兩件事」的普遍認知，被新研究正面駁斥了Tue, 17 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/software-eats-world-expired/https://letter.inlevel9.com/tw/issues/software-eats-world-expired/當 AI 讓軟體變得充裕的那一刻，經濟權力正重新回到硬體的世界Mon, 16 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/crayfish-china-it-shakeup/https://letter.inlevel9.com/tw/issues/crayfish-china-it-shakeup/中國的「養蝦」熱潮不只是單純的流行。它正在同時撼動雲端、通訊軟體、AI模型市場的格局Sun, 15 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/yakult-ladies-safety-net/https://letter.inlevel9.com/tw/issues/yakult-ladies-safety-net/同樣的益生菌飲料外送員，在日本阻止孤獨死，在韓國卻遞送信用卡Sat, 14 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/teen-farm-game-beats-fortnite/https://letter.inlevel9.com/tw/issues/teen-farm-game-beats-fortnite/遊戲產業的價值鏈正在被顛覆。而站在中心的，是青少年Fri, 13 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/mouth-taping-sleep-truth/https://letter.inlevel9.com/tw/issues/mouth-taping-sleep-truth/2億次瀏覽的病毒式傳播 vs 213名受試者——追跡貼嘴膠帶的科學依據Thu, 12 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/unpunished-market-crimes/https://letter.inlevel9.com/tw/issues/unpunished-market-crimes/預測市場為了「精確預測」而歡迎內部人。代價正在回來了Thu, 12 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/ai-250b-missing-gdp/https://letter.inlevel9.com/tw/issues/ai-250b-missing-gdp/AI的技術能力與經濟效應處於不同的時間軸上Wed, 11 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/proven-ways-to-sink-company/https://letter.inlevel9.com/tw/issues/proven-ways-to-sink-company/摧毀組織與拯救組織的方法，只是同一行為的方向不同Tue, 10 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/ai-ethics-redline-war/https://letter.inlevel9.com/tw/issues/ai-ethics-redline-war/原則在和平時期建立，戰爭一旦開始便接受考驗Mon, 09 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/huxley-technology-law-algorithm/https://letter.inlevel9.com/tw/issues/huxley-technology-law-algorithm/技術是為人類而創的，但如今人類卻是在為技術而存在Sat, 07 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/no-strategist-luck-revenue/https://letter.inlevel9.com/tw/issues/no-strategist-luck-revenue/讓產品持續被購買的人，GTM 來了Sat, 07 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/hollywood-embracing-ai/https://letter.inlevel9.com/tw/issues/hollywood-embracing-ai/勝出的不是擁有更多內容的公司，而是製作得更好的公司Sat, 07 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/ai-agents-trust-gap/https://letter.inlevel9.com/tw/issues/ai-agents-trust-gap/導入代理的真正瓶頸不是能力，而是信任Sat, 07 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/ai-jobs-data-says-otherwise/https://letter.inlevel9.com/tw/issues/ai-jobs-data-says-otherwise/真正的危險不是被裁員，而是正在悄悄收窄的入口Sat, 07 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/your-customer-is-an-agent/https://letter.inlevel9.com/tw/issues/your-customer-is-an-agent/當產品的「真正使用者」改變時，整個打造方式都必須跟著改變Fri, 06 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/2026-three-safeguards-off/https://letter.inlevel9.com/tw/issues/2026-three-safeguards-off/稀土、核武軍備、能源霸權——若讀不懂結構，就只剩下情緒Thu, 05 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/agent-payments-korea-locked/https://letter.inlevel9.com/tw/issues/agent-payments-korea-locked/在 AI 代理經濟的基礎設施正在建立的當下，韓國的「封閉結構」正拖著後腿Thu, 05 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/ai-infra-real-battleground/https://letter.inlevel9.com/tw/issues/ai-infra-real-battleground/AI基礎設施競爭的真正瓶頸不是晶片。先確保電力與記憶體的企業才能贏得這場戰爭Thu, 05 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/why-brand-communities-fail/https://letter.inlevel9.com/tw/issues/why-brand-communities-fail/社群的本質不是「平台」，而是「持續地存在」Thu, 05 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/valley-quietly-uses-chinese-ai/https://letter.inlevel9.com/tw/issues/valley-quietly-uses-chinese-ai/這不是成本問題，而是 AI 產業重心正在轉移的信號Thu, 05 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/eu-bans-infinite-scroll/https://letter.inlevel9.com/tw/issues/eu-bans-infinite-scroll/成癮不是使用者的意志力問題。歐盟這次首次將責任歸咎於「平台設計」Thu, 05 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/saas-crash-not-ai/https://letter.inlevel9.com/tw/issues/saas-crash-not-ai/軟體產業正從「發散期」走向「收斂期」。能活下來的，是提供「行動」而非「摘要」的那一方Thu, 05 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/talent-war-money-loses/https://letter.inlevel9.com/tw/issues/talent-war-money-loses/R&D投資佔GDP比例全球第二的韓國，為何在人才競爭力排名中跌出前25名Thu, 05 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/wrong-pundits-sell-membership/https://letter.inlevel9.com/tw/issues/wrong-pundits-sell-membership/預測失誤是人性的，但拒絕承認失誤的結構卻是宗教性的Thu, 05 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/korea-relocation-dilemma/https://letter.inlevel9.com/tw/issues/korea-relocation-dilemma/政府與企業的手握得完美無缺，缺的只是當事人——青年的同意Wed, 04 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/brainwave-robot-training/https://letter.inlevel9.com/tw/issues/brainwave-robot-training/AI 的下一本教材不是「書」，而是「人類的腦」本身Wed, 04 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/forget-monetization-earn/https://letter.inlevel9.com/tw/issues/forget-monetization-earn/變現不是起點，而是創造價值後自然隨之而來的結果Wed, 04 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/orwell-language-decay/https://letter.inlevel9.com/tw/issues/orwell-language-decay/清晰的語言不是清晰思考的結果，而是清晰思考的條件Wed, 04 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/pentagon-pizza-theory-debunk/https://letter.inlevel9.com/tw/issues/pentagon-pizza-theory-debunk/假說越迷人，驗證的刀刃就越該鋒利Wed, 04 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/adult-adhd-environment-surge/https://letter.inlevel9.com/tw/issues/adult-adhd-environment-surge/用過去的診斷標準來評估「注意力經濟」時代的人，任何人都可能成為患者Tue, 03 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/rice-farming-personality/https://letter.inlevel9.com/tw/issues/rice-farming-personality/種植哪種穀物，決定了一個社會的思維方式、人際關係，甚至在星巴克裡的行為模式Tue, 03 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/invert-your-strategy-doc/https://letter.inlevel9.com/tw/issues/invert-your-strategy-doc/真正的戰略不是捨棄壞的，而是在兩個好的選項中放棄其中一個Tue, 03 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/doctor-neighbor-mobility-study/https://letter.inlevel9.com/tw/issues/doctor-neighbor-mobility-study/孟母三遷不只是成語，而是被數據證實的社會現象Tue, 03 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/ai-video-cost-collapse/https://letter.inlevel9.com/tw/issues/ai-video-cost-collapse/AI 影片生成成本一年內暴跌 65%。這不是技術的進化，而是影片製作產業結構正在改變的信號Tue, 03 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/jevons-paradox-ai-work/https://letter.inlevel9.com/tw/issues/jevons-paradox-ai-work/效率越高反而越忙的悖論，正在你的書桌上上演Mon, 02 Mar 2026 00:00:00 GMTbusinesshttps://letter.inlevel9.com/tw/issues/phd-without-papers/https://letter.inlevel9.com/tw/issues/phd-without-papers/AI 時代，證明專業能力的方式本身正在改變Mon, 02 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/robot-5-dollar-wage/https://letter.inlevel9.com/tw/issues/robot-5-dollar-wage/問題不再是機器人做得多好，而是人類該做什麼Mon, 02 Mar 2026 00:00:00 GMTai-techhttps://letter.inlevel9.com/tw/issues/self-help-to-practice/https://letter.inlevel9.com/tw/issues/self-help-to-practice/問成功人士有什麼秘訣，得到的回答總是同一句：『就是做了而已。』Mon, 02 Mar 2026 00:00:00 GMTsocietyhttps://letter.inlevel9.com/tw/issues/learn-taste-not-skills/https://letter.inlevel9.com/tw/issues/learn-taste-not-skills/技術會帶來依附，品味才是不可替代的資產Mon, 02 Mar 2026 00:00:00 GMTsociety