yes, but it's unreasonable to expect a home user to not need to
subnet. particularly when there are so many different media
competing for the home network space....it would be reasonable to
have a subnet for each medium.
I originally agreed with you on that. However, given modern switches,
I'm not nearly as convinced.
a clever router/switch could certainly do a lot without subnetting.
one of the areas in which I think the IPv4 design failed is that it
didn't really follow the catenet model. it was not possible to extend
the network from any point. and this is part of what led to NATs,
because there really was a need to be able to do that. IPv6 doesn't
quite let you do that either, but having long addresses is probably
"good enough" provided the prefixes given to supposed "end users" are
still long enough to allow a couple of additional layers of network to
be hung off of them.
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