Meta's AI Can Predict How Your Brain Works, Apple Opens Siri to All AI, Wikipedia Bans AI Writing

Today we're covering the biggest AI stories of March 27th, 2026. Meta open-sourced TRIBE v2, an AI model trained on over 1,000 hours of brain scan data from 700+ people that can simulate neural activity across vision, hearing, and language — with its synthetic predictions actually outperforming real fMRI recordings, potentially doing for brain research what AlphaFold did for proteins. Apple is planning to open Siri up to rival AI assistants starting with iOS 27, ending ChatGPT's exclusive integration and letting users route queries to whichever model they prefer — while Google's Gemini handles the underlying rebuild. Plus, Wikipedia's volunteer editors voted 40-2 to ban AI from writing articles on the English-language site, pushing back hard as AI-generated text reportedly surpassed human output for the first time in 2025, and a community workflow from a musician who used Claude to simplify piano scores so he could stop turning pages mid-performance.