Say I have Gmail and you have Outlook. I can email you, you can email me, and everything will come across just fine. But I can’t use my Gmail (lemmy.world) credentials to login at Outlook (lemmy.australia, for a random example), and you can’t use your Outlook credentials to login in at Gmail. Like that, but all of your emails are public.
It’s like a thousand different reddits who can all communicate with each other, and post on each other.
Other people like the countries analogy. I am a citizen of my country, but I can visit other places and speak with people who live elsewhere.
Say I have Gmail and you have Outlook. I can email you, you can email me, and everything will come across just fine. But I can’t use my Gmail (lemmy.world) credentials to login at Outlook (lemmy.australia, for a random example), and you can’t use your Outlook credentials to login in at Gmail. Like that, but all of your emails are public.
It’s like a thousand different reddits who can all communicate with each other, and post on each other.
Other people like the countries analogy. I am a citizen of my country, but I can visit other places and speak with people who live elsewhere.