When I was a child it could be expensive to call people on the telephone outside your local area (which was free), and very expensive to call internationally. But there was a universal addressing and exchange system by which every phone could (in theory) call every other phone. Could we get back to that using lifetime IPv6 addresses as phone numbers, and what would be the privacy implications (if any)?
@digicana because computers make more sense than most people ;P But seriously, the internet today works a bit like a "party line", which was a situation where everyone in your street shared a single phone line, with a single phone number. People had to take messages for their neighbours, or run up and down the street telling them to pick up their phone. ISPs only assign one IP address per customer (household, office etc), not per device, and using DHCP, so it can change at random.