克拉克·克尔提出“多元大学”概念，重塑现代大学认知

1963年，美国加州大学校长克拉克·克尔在哈佛大学发表演说，后出版《大学之用》，首次提出“多元大学”概念。他认为，战后美国研究型大学不再是学者共同体，而是一个庞大机构复合体，兼具研究引擎、职业培训、资格认证、成人仪式和国家技术精英孵化器等多重功能。克尔以风趣著称，曾调侃大学面临的三大问题是“教授停车、校友体育、学生性事”，教职工是“因共同抱怨停车而团结的个人企业家”。1966年，因对自由言论运动态度温和，他被里根政府解雇，留下名言“我以被热情地解雇开始这份工作，也以被热情地解雇结束”。尽管言语幽默，克尔严肃指出，多元大学看似松散混乱，实为20世纪中期美国文明的关键制度枢纽，承担着知识生产、技术精英培养和民主公民塑造的重任。 #高等教育 #克拉克·克尔 #多元大学 #大学之用 #教育史 #加州大学 #学术思想 #美国大学

SAGA研究提出生成式AI视频来源归因新方法

来自arXiv的一项最新研究提出了名为SAGA的框架，用于对生成式AI视频进行来源归因，即通过技术手段识别生成视频所使用的基础模型。该研究由Rohit Kundu等五位作者完成，论文已在arXiv预印本平台发布。随着生成式AI视频内容日益增多，追溯其来源对于内容真实性验证、版权保护及安全监管至关重要。SAGA方法通过分析视频特征，可有效判断其由何种模型生成，为提升AI生成内容的透明度和可追溯性提供了新思路。该工作已被列为计算机科学领域热门论文，并提供了代码与数据链接。 #SAGA #AI视频 #来源归因 #生成式AI #arXiv #科技研究 #内容安全

Show HN: Which investing school are you? Free AI diagnostic and Prompt Library

v3.0 🤖 8 AIs × 7 Investing Experiments Your Personal AI Investment Operating System Claude, ChatGPT, Gemini, Grok, DeepSeek, Kimi, Qianwen, and Doubao spent tens of thousands of tokens across 7 real experiments debating one question: what investing philosophy works best? This tool turns their answers into your personalized coaching system. 📚 8 AIs' Knowledge + 🩺 5-Step Diagnosis = 🎯 Your Investment OS ✓ Diagnose your investing fit — with a personalized match score ✓ See what 8 AIs actually think about investing philosophies ✓ Get a Prompt Library personalized to your exact profile ✓ Find out which AI fits each investing task best 🎯 0 investors have already built their Investment OS Build My Investment OS →← See the full AI Investing Experiment series 🧪 Or jump straight to a Decision Lab Tool 📊 DCA

Lab Smile curve sim Recovery Hold/add/cut Kelly Lab Optimal position size Dividend Engine Freedom date Pyramid Builder Risk budget · tranches Portfolio Doctor N-eff · black swan 中文版 → 定投实验室 · 解套分析 · 凯利仓位 · 股息引擎 · 建仓金字塔 · 持仓体检 ⚠️ For educational purposes only. Not financial advice. All content is based on AI experiment data and does not represent professional investment guidance. 1 2 3 4 5 Before we start Have you started investing yet? This shapes how we describe your profile and what we show you next. A Yes — I have a brokerage or fund account B Not yet — I'm figuring out where to start Next → Question 1 of 4 How many investing philosophies do you know? There are 6 main schools. Before we ask what fits you, let's make sure we're on the same page. A 1–2 — heard of them but not clear on the differences B 3 — I know a few well C 4–5 — pretty solid grasp D All 6 — I'm familiar with each one 🦅 Value Investing Warren Buffett · Benjamin Graham Find great businesses trading below their intrinsic value. Buy and hold for years — let compounding do the work. The "boring" approach that historically outperforms most active strategies. 📌 e.g. Coca-Cola (KO), Apple (AAPL), Berkshire (BRK.B) — durable brands, wide moats, held for decades. 📊 Index / Passive Investing John Bogle Don't try to beat the market — own the whole market cheaply. Dollar-cost average into index funds. Beat most professionals by doing almost nothing. 📌 e.g. SPY / VOO (S&P 500), VTI (total US market), QQQ (Nasdaq 100). Set auto-invest and ignore the noise. 🌱 Growth Investing Philip Fisher Find companies growing revenues and market share rapidly. Pay a premium for future dominance. Higher upside, higher volatility — patience and conviction required. 📌 e.g. NVIDIA before the AI boom, Amazon in the 2010s — high P/E, high growth, requires holding through painful drawdowns. 📈 Trend Trading Jesse Livermore Follow price momentum. Buy what's going up, sell what's going down, cut losses fast. Demands iron discipline — most practitioners eventually lose without a system. 📌 e.g. Bitcoin & crypto cycles, NVDA breakout in 2023. Success depends entirely on when you enter and exit. 🌐 Macro Hedge George Soros · Ray Dalio Trade across asset classes based on macroeconomic cycles: currencies, bonds, commodities, equities. Extremely high bar for entry — this is institutional-level complexity. 📌 e.g. Gold (GLD) as inflation hedge, TLT on rate cuts, oil on supply shocks. Soros shorted the British pound. Dalio uses All Weather. 🎯 Core-Satellite Bogle + Buffett / Fisher hybrid 80% index for stable market beta · 20% active positions for selected upside. Structure that lets you benefit from both systematic and conviction-based investing. 📌 e.g. VOO as core + 3–5 hand-picked stocks as satellite. Separates "must not lose" from "willing to bet on." Got it — continue → ← Back Question 1 of 4 — Let's start from the basics A quick introduction before we build your system These are the building blocks. Tap to expand any section. No test — just context so you can make an informed choice. 📂 Q1-1 — What types of investing exist? 🧭 Q1-2 — What are the main investing philosophies? You've probably heard of these investors. Tap each one to see what approach they represent. ← Back I've read it — continue → Question 2 of 4 Which school do you think the 8 AIs recommended? Make a prediction — then see the actual experiment data. You can select more than one. 🦅 Value Investing 📊 Index Investing 🌱 Growth Investing 📈 Trend