I did find myself without barely any cash during Spain's blackout and that made it really stressful. It made me value physical currency a lot more. Now I wish

I did find myself without barely any cash during Spain's blackout and that made it really stressful. It made me value physical currency a lot more. Now I wish digital payments didn't require a server/ledger connection at all, but I understand that would risk double-spend attacks unless all the computation could be fully trusted, which we can't even guarantee for existing card payments.