I think one of the biggest challenges with modern social media is the ability for anyone to immediately engage in "broadcast" communications. Absent the centra

I think one of the biggest challenges with modern social media is the ability for anyone to immediately engage in "broadcast" communications. Absent the centralised media of old, broadcast simply wasn't an option in the past - at best you could try to multicast by shouting in the corner of a bar at as many friends as you could muster, or stand in the street and talk to groups of people. Unicast was scalable and easily accessible - just pick up the phone, or write a letter. But the average person probably couldn't gain access to a significant multicast group without first gaining the "backing" of their group. And they could then attempt to grow from there. Clearly that's far from perfect as echo chambers are an issue today as well! But it does feel to me like the lack of friction, coupled with nearly instant access to a global, un-namespaced platform, and the ability to broadcast, has just removed a little too much friction. I guess the big challenge is working out how to add enough appropriate friction to improve the situation. Or do we need to revert to a more namespaced internet again?