1. Post video clips: Elon seems to want Twitter to be more about videos as he knows videos work best on TikTok / Instagram
2. Get some verified profiles to reply: I have a large account (over 4 million followers) and I seem to get bots auto-reply on them - I assume, to grow their own profiles as people see them and then follow. Anyway, this increases my engagement which = more shows on other people's profiles which = more engagement.
Tweets need that initial boost from verified profiles and then other 'normal' accounts chime in.