The tech industry is all about growth. For better or worse facebook has basically grown to it’s max size, and it’s unrealistic to expect any significant growth there. Zuck is trying to sell investors and shareholders on the idea that Meta is going to be at the center of the next massive thing. Some years ago he thought it was going to be VR, and it’s completely unsurprising that he now thinks it’s going to be AI (unsurprising because every other tech company thinks the same thing).