We are at most, a few months away from apps with content and sharing mechanisms just not possible on Twitter or other centralized, closed-source platforms. That's when the momentum will really start to build for Activitypub and other protocols supporting federated networks. We have stop talking about it being a twitter "alternative" and start talking about is as an evolutionary step forward in global social networking. Because that's what it is.

@shoq A lot of people (myself included) don't want a new network, we want a Twitter replacement. Imo Twitter lasted so long because the formula was so good. Short messages, broadcast to everyone, allowing replies that are equal to posts (in terms of replying, retweeting, etc.).

I don't care about the future of social networking, I've only ever extensively used Twitter because it's better for me.