Prediction for Twitter's demise:
1. Twitter gets harder to maintain
2. Outages increase from once a week to near daily
3. Elon Musk pronounces that Twitter's old code is a mess that can't be saved, and he promises Twitter 3.0 -- which will be better in all ways from the old Twitter
4. A year later, Twitter 3.0 is released, and it's not like "real" Twitter -- but it's a pay-to-play platform
5. People finally realize "old" Twitter is not coming back, and go elsewhere -- probably to Mastodon
Why do I believe Twitter's demise will follow the above playbook?
Because I've seen this happen before.
The most infamous example is Digg.
In that example, Digg's demise meant Reddit's ascendancy.