I met Vint at the Kech Institute for Space Studies. He arrived to help us look at in-space data centers for planetary science throughout the solar system. He was a big proponent of delay-tolerant networking and other useful networking stacks, so he was the "rep" for that layer of problems.
Just the nicest guy you could imagine. He took the note-takers job during our breakouts, had beers with us after the session, and asked really good questions and never asserted anything the whole time.
What a legend.
I had the pleasure of attending a presentation he held a bit over a decade ago (public event hosted by the university, back when I was a student).
I didn't get an opportunity to talk to him personally after the event as there was a large queue of senior academics and other VIPs already waiting, but I did see him taking the time to talk first to some school-aged kids who had attended.
He seems like a really nice, humble guy, and looked genuinely happy to be encouraging the kids' interest in the sciences.
Apparently there's "more to come" and its not a complete retirement.