Pretty bearish on "AltmanBook" getting off the ground... At this point, incumbent social networks have pretty big network effects. That means that there's going to be a comparatively large need for a significantly better product for people to leave.

Nostr is fundamentally different than what any centralized platform can offer. AI algorithm blah blah ... sure... AltmanBook will still need to have actual human beings responsible for centralized content policy decisions, and that's where it'll fail like all the rest.