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by vel0city 684 days ago
> if you take someone elses public IPv4 address and they're using it, neither one of you will be functional, and they will come knocking on your door.

Sure, but if I have the IP address 1.2.3.4 I can have lots of unique physical things have that publicly routable IP address and have them all work if I do it right.

https://en.wikipedia.org/wiki/Anycast