--On onsdag, april 23, 2003 07:42:08 -0700 Tony Hain <alh-ietf(_at_)tndh(_dot_)net>
Thank you, this was the only simple answer to the simple question.
For the followup question:
Do you believe that the IETF created the architectural concept of
addresses with a limited scope?
no; I believe the community-that-became-the-IETF created the Internet by
*denying* that concept, which was already well known long before TCP/IP.
Because of the realities of 32 bits of address in IPv4, that denial became
more and more untenable as the years went by, until RFC 1597
re-acknowledged the existence of such IPv4 addresses in 1994.