What job? If you give me a car and I give you back 5 paper stickers with the word "Thanks", and this gets written in some database as "5 THX", what job would that stickers and data about them do? What that has to do with the concepts of economy, payment or transactions? Nothing.
The irony is that you’re describing what happens in fiat. I give you the car, and you give me 5 paper stickers back with „500“ written on it. We act like it’s the most serious thing in the world, just because it came out of a specific printing press that is chosen by some entity(government).
Or when we’re using digital payments, it gets sent to some payment processors database and it takes days until that number gets written inside the database of my bank. There’s many hops to take and the whole architecture is a mess, outdated and insecure. And a pain for businesses:
I said this, at least twice. The function shiat money bills do, Bitcoin does it 10x better, if not more, considering all the properties that a sound/hard money like Bitcoin has! But he keeps repeating the same thing over an over, as if by repeating them over and over, they could somehow enter our heads and we get brainwashed by the constant repetition. Well, that might work with lies, that when you tell them a lot, maybe they become truth for some lower level IQ people, but not all!
Shiat money has been working because the majority of people was convinced (excuse me, coerced) to accept that governments are turstfull enough to say that those pieces of paper hold some (here, yes) imaginary amount of value (representing the debt the government creates/issue), has in fact that value. So, it's being backed by something you can't even palpate, see, smell, toutch...