Meta's new Applied AI unit, built to power Mark Zuckerberg's $14.3 billion bet on chief AI officer Alexandr Wang, is in open revolt. The 6,500 engineers drafted into the months-old team call the work "soul-crushing" and a "gulag," with one hijacking a company livestream to insult an executive. Amid 8,000 layoffs and a worker-surveillance backlash, even CTO Andrew Bosworth admits Meta's AI rollout was "atrocious." Here's why morale collapsed.