> You are referencing the private blocks that are designed for private use.
Sure, but the person I'm replying to wasn't making a distinction here. They're just saying, "Have you ever changed the static IP address of a computer", where does that exclude RFC1918 IP addresses? I'm right for the right reasons IRT to the person I'm replying to. There are IP addresses which are absolutely not globally unique in any way, shape, or form by design.
> I think it's fair to say [public] IP address are intended to be unique to an org while private ips are not.
"Unique to an org", that's massively different from "globally unique" which is what the person I replied to suggested.
> multiple routers can broadcast the same IP so devices can use the closest router.
100% correct here, that's the biggest reason why you'd have an IP address shared among a lot of different devices.