Mark Zuckerberg just told roughly 8,000 Meta employees their jobs are gone, and his defense boils down to five words: success isn’t a given.

The layoffs, which began on May 20, represent approximately 10% of Meta’s total workforce. But the cuts are only one piece of a much larger restructuring that signals where Zuckerberg thinks the next decade of tech is headed.

The full scope of Meta’s AI pivot

Meta is simultaneously reassigning around 7,000 existing employees to AI-focused roles. The company has also scrapped plans to fill 6,000 open positions that were previously on the books. Add it all up and you’re looking at roughly 21,000 roles either eliminated, redirected, or frozen, all in service of a single strategic bet.

In an internal memo, Zuckerberg described AI as “the most consequential technology of our lifetimes.”