I don't know about you guys, but I did not need a technical explanation to understand how the fediverse works. I don't need to be technically minded. The great thing about it is that it just works, and you can see that happen as you go along. You can notice there are different instances, and that you can connect with them from where you are. You can see how some of them look and operate differently, and work out that there are differences there and that they have different names too.

Just stay a while... and you will pick it up. If you want something more in depth then people on the fediverse will answer questions you have or talk about it without any prompting.