Skeptic's take is always appreciated! - They do. There's definitely overlap there although because groups are often centred around a topic (school, work, hobby

Skeptic's take is always appreciated! - They do. There's definitely overlap there although because groups are often centred around a topic (school, work, hobby), it's generally not the place to share things that aren't directly concerning the group/people in the group. Eg. I want to a great building I've just visited, I'm generally not going to share it to the group chat for my class in my masters, but I would like certain people to see about it. Circles here are closer to a broadcast list. - Somewhat true, I think there are many points of failure in that case study. Our hypothesis is that by making a social network function entirely through circles, people will have a much more enriching and intimate experience. This has been proven true with current users, despite it not being for everyone. - Noted. Thanks for this.