I was interested to see if my memory was correct- the group was set up by David Abrahams. Which then sent me down a rabbit-hole of why has he seemed to have fad

I was interested to see if my memory was correct- the group was set up by David Abrahams. Which then sent me down a rabbit-hole of why has he seemed to have faded from the scene the last few years? It seems he has been working on Swift for Apple since 2013. Its amazing how well gmail works, instantly finding emails from ten years ago.