Credit cards and debit cards can be disabled at a whim. Prone to being fucked up by computer error

That’s the beauty: my card goes missing, I can lock it. Unauthorized charges can be reversed. I’m alerted of any charge immediately. Cards extend warranties on purchases & provide purchase protections.

don’t work when the internet is down, or during a disaster with no power.

Unless you carry around a huge supply of cash at all times, you’ll be in the same bind withdrawing cash: ATMs & account ledgers run on power & networks.

Cash always goes through, though.

That’s also a problem: anyone can use my cash. If they steal it, I have no way to disable it, and it’s more difficult to recover. If I lose it, it’s most likely gone.

Cash will always remain king.

Not in terms of security or recovery.

I could withdraw cash, and carry it around, but then it won’t earn high interest.