Why Did the Fed Change Its Mind?

A year ago the Fed was cutting rates. This week it raised them. So is inflation real, or is it just oil? Karl digs into the Fed's credibility, why stocks have often shrugged off the first rate hike, and the one Treasury yield that seems to see the Fed coming before the Fed does. Plus, a viral resignation has the biggest AI labs talking about slowing down. Is it conscience, or is it a moat?