[Dylan16807]

> Carrier grade NAT puts thousands of users behind the same IP address - that's what it's for.

It doesn't have to. 100:1 would work just fine. With IPs being about $25 each that's an acquisition cost of less than a dollar per user.

> That's 6.5 ports per person, you need one for each connection.

That's not how connections work. Each user could make a million connections as long as they're spread around different servers. The 65k limit applies to simultaneous connections to a single webserver. Only the most-connected server matters, so probably something at google/youtube/facebook, and even then most of those servers have multiple IPs.