we grew past the global scale fully connected topologies somewhere in late 80s if not earlier (i was in ussr kindergarden at that time, so please somebody correct me).
> Bitcoin Cash seems to be doing just fine with its 8 megabyte blocks
is it maybe because nobody is using it? :) blocks are 15 times smaller, tps is 10 times lower, USD transferred per day is 50 times lower.
gee, no wonder bitcoin cash is doing just fine, it's a copy of bitcoin and that kind of load is where bitcoin was couple years ago.
"At that stage, most users should start running client-only software and only the specialist server farms keep running full network nodes, kind of like how the usenet network has consolidated."
You're right that Bitcoin Cash usually has fewer transactions than Bitcoin Core, though, which alleviates scaling pressure. Similarly, now that people are switching to Bitcoin Cash and altcoins, that same scaling solution is working for Bitcoin Core too.
you've basically described the motivation behind LN.
> Bitcoin Cash usually has fewer transactions than Bitcoin Core, though, which alleviates scaling pressure.
very nice spin ;)
> https://i.redd.it/wbpq99paw74z.png
correlation does not imply causation.
numbers are clear: 15 times more data, 10 times more transactions, 50 times more USD transferred. no altcoin is even close to that level of economic activity, even those with inflated tps numbers.