MattJul 8, 2023

Because they use ActivityPub, both of them can potentially interact with each other (post, viewing, following, liking, boosting, etc). There’s no way to stop Threads from being able to interact fully with Lemmy if it’s something Meta wanted to implement.

Mastodon can already interact with Lemmy directly by following communities, posting to communities, and interact with posts/comments. Lemmy doesn’t go the other way though because it isn’t implemented, but it could be.

Any ActivityPub software/platform/website can interact with any other ActivityPub software/platform/website if it so wants to, that’s the power of ActivityPub.

Show threadTimewornTraveler
what’s Activity Pub? you’re the first person to teach me that name
Jul 8, 2023 at 1:51pmWeb
Show threadMattJul 8, 2023

For a non-tech answer, it’s basically the “language” used between these websites to make them talk to each other.

If a website uses ActivityPub, it can fetch information (and send information) to other sites that are using ActivityPub in a specific way that’s designed for social media.

Another example of this would be SMTP (simple mail transfer protocol) which is what e-mail uses so that different e-mail servers (outlook, yahoo, gmail, etc) can all talk to each other seamlessly.