It's actually a copy of the original room, and there are invisible goblins synchronising all objects in the rooms so that it looks like the same room. They are also moving mannequins so that they match the movements of all the people in the other rooms.

To us it looks and feels like the same room with the same objecs and same people, so it doesn't really matter.

But sometimes an admin might order that the goblins must not sync one specific room anymore. Then you start to notice differences depending on which door (=room) you actually use.

I wouldnt say incapable. Before I joined I was unsure about this whole federation thing as well. I was worried that I have to sign up to multiple instances (and this is actually not untrue, because of defederation) but I worried too much. It's a lot easier than I imagined

There's a difference between "incapable of understanding" and "doesn't have enough background information to understand." Are there people who can't understand certain tech concepts? Absolutely. But there are a lot more people who just miss the first rung on the ladder, and can't make it to the top. They can understand when they get the explanation from the ground up, but until then, they're stuck.

I see it happen a lot when tech people try to explain something that is brand new to the listener, because when you are already able to understand something at a high level, you forget to mention the first several rungs. It's usually a great explanation, it's just not an explanation the person on the ground can use.

...also, I don't think it's failure to understand login when every instance asks for a separate login if you don't navigate there through your own instance. It's a misunderstanding that results from experiencing the fediverse without understanding how it works, not a failure to grasp an abstract concept.

A week ago, I would have said that's it's complicated, but I just login into lemmy.world and I can browse minutes of content!!!