Welcome to Bull Street Buzz — Sunday, April 12th 2026, 9:18pm — Experimental Drug Can Reverse Osteoarthritis in Weeks, Animal Research Shows - ScienceAlert — ‘A big slap in the face’: San Francisco protesters rally at Philz over Pride flags - San Francisco Chronicle — Sam Altman responds to ‘incendiary’ New Yorker article after attack on his home - TechCrunch — Oil-price disconnect obscures unprecedented energy shock - Axios — Family-owned Sonoma Valley winery files for Chapter 11 as industry struggles - San Francisco Chronicle