do i need to pay with money?

There's 1000 dollars in the economy. I hoard 100 dollars of it. Only 900 dollars can be traded

why can't i do something for someone in exchange for food?

^^

Why is the economy going to fail now?

You could, grenade

You can't charge more than someone is willing to pay

Or rather more than anyone is willing

But what reason do you have to do something for someone who has nothing you want?

Or you won't trade

That's the role money fills. It's essentially a shape-shifting good.

Currency would have to scale to what the economy allows

how does one hoard money?

that would imply doing things for people, but people giving you stuff for free

No

How does one hoard rocks?

you get paid for your labor, but you don't pay people for their labor

I sell a product for 10 dollars, I spend 1 dollar on food I spend 2 dollars on services. I keep the rest

I'm now not putting 7 dollars back in

so you produce more than you consume

Yes, and then you store it

and this is harmful....

Or "hoard"

I would say no

Yes it is harmful coz no monetary exists in a vacume. More money will be printed to inlfate your saving aways or people will start trading in things they can get their on.

why?

So poppy

go on

The harm would arguably be in printing more money

Not in Hoarding it

Sorry BTW for dropping such a heavy topic and responding in blurbs. I got called for a delivery...

Unless you make a currency that can be infinitely devisable then yes. The population is going to grow so either the supply needs to grow or the value needs to grow.

If you hoard it, then value of each dollar goes up. At some point, in order to keep hoarding it, i'd need to produce everything i need myself, because otherwise i will need to pay out more than i get in because of the value increase of each piece of money

You did make an argument that lead to inflation, but I think the dispute is in causation

each piece of money i hoard, increases the value of traded money.

Grenades picking up what I'm laying down.

and i can only hoard money if i produce more than I consume, value wise, or i don't consume.

which means i need to produce more for each piece of money i hoard

Bingo

or, i need to stop consuming

You are talking about deflation.