Social media feeds are designed to be slot machines. Each scroll is a pull. You may or may not get something you actually want. You can't predict what's coming up next, so you just keep mindlessly scrolling.

The purpose of a personal assistant isn’t to fit people into your calendar. It’s to filter them out. They serve as a barrier to your time, not an enabler for other people to claim it. I don’t see how an AI can meaningfully accomplish that any better than simply just making yourself more difficult to reach.

The thing is that professors and research groups aren't fungible. Each one that moves represents a nontrivial loss in expertise for the US in some field. There are only so many groups doing basic research into materials science for microelectronics, for example---certainly not at all 187 R1 universities. But something like that is a strategic asset for the US, to the point that there's a DARPA office specifically to fund that work (https://www.darpa.mil/about/offices/mto).