In the future a blockchain based currency might work for some, but as a one size fits all solution it falls down. It’s dependent on power, network connection, and people using it. The Amish, mennonites and hudderites are successful in North America and aren’t going away anytime soon. They don’t use this stuff but gladly take cash or will trade with you if your goods are worth it. Bartering is older than cash and will outlive it. You have chickens, I have wine. I can trade my wine for some of your chickens. I need a truck frame powdercoated, I can take a few bottles of wine and $50 to the nearby colony and get it done. On a global scale, it’s not as pleasant but trading a ship load of grain for a ship load of oil happens, the numbers on the screen honestly don’t matter. You’re not counting out bills anymore for large purchases, it’s just numbers on the spreadsheet saying it’s good to go. For small communities, cash works great and bartering can work even better. Crypto currency is a first world problem, solving it is a headache most don’t want to undertake. A supposedly secure system that you went to great lengths to explain why it’s not, developed and introduced by a hidden mystery figure, the “benefit” of a set number of coins only to have tons of shit coins and “satoshis” come later meaning it’s not truly limited, just for now it’s limited. Too many downsides and mysteries for me to sink my money into. Those who got rich, congrats. But it feels very tuplip-y to some of us.