Hacker News Reader

Agreed. I think he is a hackernews user as well

He is.

Wasn't he going to do some kind of work with ycombinator attempting to recreate some of the spirit of Xerox PARC? Maybe I just dreamt it.

HARC

That was it. Official site: https://harc.ycr.org/ Nothing super interesting there yet, at least to me :/

Bret Victor (worrydream.com) is a PI at HARC, having seen his previous demos, I'm very optimistic about HARC's future.