Is it somewhat concerning that the current Twitter owner also owns a Rocket company and can monopolize interplanetary communications?
ActivityPub needs cross planet support long term, and satellites so we don't need to rely on adversarial competitors
@lps yeah, at the least IPFS would be great for hosting static content like memes and cat pictures.
IPFS is a little weak on serving dynamic content like a feed of posts, but it can be done.
The big problem is in overhead, though. Decentralized systems like IPFS trade inefficiency for their features, so who knows how well IPFS would be able to scale.