OK. Yes. That makes sense except for the fact that... Aren't all data packets basically mail, then?
Please don't waste your time on my faffing about with this. I'll understand it eventually. 😅
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Sure.
But one is me sending a letter to your mailbox (with a service that relays the letter).
The other is me and you talking a private room, that we both have an access code to, but that ultimately somebody (admin) controls the access codes for.
Hmmm... Yes.
And ultimately, there's a lot of stuff happening in the background to make it work in either case.