It's funny when armchair experts insist that the fediverse won't catch on because "federation is too hard to understand" when arguably the most widespread communication system on the internet follows the same model

Because you don't need to understand email to use it.

There have been decades of software and user interface advancements that have made the usage of email extremely simple and straightforward.

People also inherently grasp the idea of it because they understand the real world concept of mail.

Email is also one way. You aren't sending mail to and receiving mail from everyone at once, or reading mail one person sent to another and interjecting. You're just sending something to an address, not CC'ing literally everyone all the time.

Email also doesn't have any confusion around which mailboxes are allowed to speak to each other.

The fediverse is nowhere near that simple or intuitive.

Particularly Lemmy because Lemmy admins have fundamentally broken the idea of federation with defederation. It generally doesn't matter what email you use or what email the receiver uses, baring more niche services. It does actually matter what instance you're on.

We try to sell people on this comparison, try to explain to them that it's simple, but it's really a half-truth at best, or a lie at worst.

When you joined reddit, you know for a fact you're seeing everything, and the same thing as everyone else. The same posts, the same comments, the same vote counts. A simple, shared, unfiltered experience of everything was the default, and then you shaped it yourself.

That's not the case with the fediverse. There's no simple default. You have to build it yourself.