I set up a Google Hangout chat yesterday for #gtachi  in order to have some synchronous communication over time that wasn’t just in the G+ community. I was able to add everyone from the community except for the four of you for some reason. My guess is that possibly you haven’t switched to the new version of hangouts that includes chat and that is the issue, but I wanted to let you know. Talk to you all soon, and I am looking forward to learning from you.