Anyone on a federated server can see this post. I’m on my own personal server for example. There’s no local content whatsoever. I’m getting all content through federation which basically means that all the servers are agreeing to talk to each other and share content. It’s like a group chat but for websites.

I am on lemmy.world and can see it

On my personal instance and I’m here.

Good federation from pawb.social

🥳

Doesn’t look like anything to me.

Hello world! (from lemmy.world :D )

I can see it from lemm.ee