SLATE - Some experts and pundits are saying the departure of ~1M people from Twitter after Elon Musk's takeover marks the death of social networks. It is not so much the death of age as an evolution in social networks - a shift towards community-focused and - designed spaces like Mastodon, Discord, and Twitch. While social media was for 15 years or so focused on bringing messages to as many people as possible at one time, it is heading toward a future in which it's about reaching a much smaller group of people with whom they already share interests, beliefs, or affinity.