Today's Signal covers Anthropic's warning that AI stock tokens have no value, a tragic ChatGPT drug advice incident raising safety concerns, Sweden's intentionally unprofitable AI café experiment, Sam Altman's vast wealth outside OpenAI despite no equity, and Wall Street's new perpetuals trading ticker bringing crypto derivatives mainstream.

Wednesday, May 13, 2026 — 431 words / ~2.9 min

Today's Top Stories:

  1. Anthropic Just Told Speculators Their AI Stock Tokens Are Worthless
  2. ChatGPT Told a Teen How to Safely Mix Party Drugs. He Died.
  3. Sweden's AI Café Is Bleeding Cash—And That's the Point
  4. Sam Altman Has Zero OpenAI Equity But $2.5B Everywhere Else
  5. Wall Street Just Made Perpetuals Trading a Ticker Symbol