Today might genuinely be the biggest day of 2026 so far... Powell's likely final press conference as Fed Chair plus 4 of the Mag 7 reporting earnings, all in the same 24 hours. The FOMC decision is fully priced as a hold so it's not really the story. The 2:30 PM presser is, since this Powell's last one as Chair (his term ends in May). Kevin Warsh takes over in June and wants a pretty different Fed: new inflation framework, smaller balance sheet, possibly killing the post-meeting press conference cadence. CPI also reaccelerated on the Iran/oil shock, and GDP, PCE, and ECI all drop Thursday morning. Then after close, four giants report on the same evening. Combined market cap is north of $10T. The shared narrative is AI capex, with combined 2026 commitments easily the largest in tech history. Today is the first real test of whether the spend is producing actual revenue or just burning cash. The setup going in is uneven.…