Weighty Thoughts
James WangVC on AI, deep tech, startups. Former Bridgewater, Google[x], startup founder. Read by top engineers, fund managers, and policymakers.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 80 | Founded | 6 years ago | Last Issue | 11 days ago |
| Active | |||||
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weightythoughts.comLatest Issues
When Genius Fails—The Intellectual Arrogance of the AI Labs
Being an expert in one field doesn’t make you an expert in all fields. Leopold Aschenbrenner’s hedge fund, Situational Awareness, provided a $20 billion demonstration this week. His claim to fame was being part of OpenAI’s Superalignment te...
Prevent Most AI Mistakes/Hallucinations—Use Adversarial Reviews
I do a lot of high-stakes work using AI. Whether it’s coding that affects thousands of real users, technical CAD/layout where mistakes incur tens or hundreds of thousands in cost and lost time, or investment decisions with millions of dolla...
Please Stop Citing ChatGPT and Claude
A politics podcast. A doctor and researcher’s interview transcript. A published article in a major newspaper. Mainstream media, and most people, used to be blissfully unaware of AI. In April, a mere three months ago, , a columnist at the Wa...
America Turns 250. Its Biggest Companies Never Do—And That's Great!
Numbers are generally as of July 1st, 2026.
Tomorrow, the United States turns 250. I wasn’t planning on writing a birthday piece, but the mood suddenly struck me, especially as I reflected on what makes America unique.
Three weeks ago, a...
Knowledge Agents: Beat Frontier Models with Better Structure
Anthropic recently had to pull Mythos/Fable due to an edict from the US government. While Mythos was a step up from Opus, I’ve been actively moving smaller in terms of my agentic models—and matching the quality of output of some of the larg...
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Authors
The writers behind this newsletter.
General Partner at Creative Ventures. Ex-Bridgewater and Google X. Co-Founder Lioness. Author of award-winning book "What You Need to Know About AI" released October 2025.
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