An Inventor of Appleβs FaceID Wants to Analyze Your Brainβs Health With AI Wired By: Isabella Ward 15 July 2026 at 08:00 Gidi Littwinβs new AI startup, Hemispheric, makes diagnostic brain scans for conditions like depression, PTSD, and Parkinsonβs. He wants the technology to be as cheap and easy as for a blood test.