He's spoken about this in length. When it actually happened it did feel like a bit out of nowhere though, but makes sense in the engineering mindset to get it o

He's spoken about this in length. When it actually happened it did feel like a bit out of nowhere though, but makes sense in the engineering mindset to get it out of the way clear before fanning out to other areas, regardless of the hard-to-estimate ETA's for those features (talking payments, "mega-app"-like features, different ways of integrating Grok, possible new UI flows for YouTube/Twitch-like fronts etc)