[gonzo]

> Remember when IPv6 decided on 128 bit addreses and defaulting to /64 blocks because someone thought using a 48-bit MAC address as the IPv6 equivalent of a port was a good idea?

No, I don’t, and I’m well-aware of EUI-64.

IPv6 uses 128-bit addressing because some on the design committee or making comments on the drafts thought that 64 bits might not be enough.