Whoa, he has some ability to realize what he has taken part in creating.
“The days of Usenet, IRC, the web… even email (with PGP)… were amazing,” Dorsey said on Saturday in a tweet spotted by Mashable. “Centralizing discovery and identity into corporations really damaged the internet. I realize I’m partially to blame, and regret it.”
They are working on it: https://techcrunch.com/2021/01/15/twitters-vision-of-decentralization-could-also-be-the-far-rights-internet-endgame/
But I doubt it will be just AP compatible out of the box.
This sounds to me like they are building a competitor to Mastodon and Activitypub. One thats under their control (or rather, their investors).