In this analogy (There in no such thing as a perfect analogy), the multiple hole digging is the password guess.. so like crypto
Crypto puts every cyber criminal in the world at zero distance from your money. They can spend all the time they need trying to crack into your vault, arousing zero suspicion. The fact that cryptographic protocols are unbreakable (today) is only relevant if we knew there were no other the weaker links.
If crypto was cash, it would be the worst form of cash imaginable.
I posit that crypto isn't cash, or if it is, it's the worst form of it.