This comment is unlikely to win me many friends here, but it is worth considering that while Bitcoin is, nominally at least, decentralized and free from government control, internet access is not. A simple glance at the trend of governments to partially or to fully shut down internet services to certain areas in times of unrest or mass protest means, in the case of Bitcoin and other cryptocurrencies requiring collect…
as in: someone’s will always have computers linked together
networking cant be shut off, ubiquity can
end users dont need todays convenience of always knowing their balance, it can degrade to going to an internet cafe or bank to check your balance
and transact with your notes
transactions can be made offline, transported offline like files and eventually sent to the network again for inclusion in the blockchain
someone has to go back to the internet cafe / bank
like the merchant at the end of the day
the only real issue is the initial hashrate drop if all major mining nodes were disconnected and couldnt reconnect. so up to the first few months, for bitcoin exclusively, could be stressful, but then difficulty will adjust for the remaining computers and accept transactions at the expected speed