Probably, but having a 2^64 tolerance factor isn't a bad idea given how difficult moving from IPv4 is proving to be. This way we have ~1 IP address per 6 micro

Probably, but having a 2^64 tolerance factor isn't a bad idea given how difficult moving from IPv4 is proving to be. This way we have ~1 IP address per 6 micrograms in the solar system, or per 3.4 tonnes in the galaxy.