Fiat doesn’t work on a finite planet.

Citations needed.

Why would I assume the title is accurate? I've never heard this criticism of fiat currency before, since the whole point is that it doesn't rely on on scarcity but on the stability of the issuing body. Can you explain, or is that outside the scope of this thread?

The objection about a "finite planet" is about capitalism, not currency. A 100% communist system can still have fiat currency and function perfectly well, the two aren't even related.

It's capitalism you don't like, not money.

what is a good way for the working class (90%+ of all humans) to save

Gonna sound like a dangerous lemmy communist, but vote for parties who want to raise wages and join Union to defend your rights. The main problem is that most working class struggle to finish the month without a negative bank account, once it's solved, saving become possible again

The title isn't accurate, so I can't assume it is.

Fiat currency works precisely because the planet is finite. What you're thinking of is a currency that's tied to a finite resource, like a gold standard. Fiat currency works precisely because monetary supply is able to be increased to keep pace with both the population and economic growth. Likewise, fiat currency can be removed from the economy when the economy shrinks (although this hasn't happened before).

Finding pockets of self sufficiency, or at least ways to prevent falling down to the bottom.

Universal basic income helps this by making sure everyone has at least enough to live on.

Homesteading and community gardens help this by making sure you at least have some basic amount of food available to you.

Building walkable cities helps.this by allowing you to avoid or reduce the expenses of a car.

Building resilient cities that leverage adaptive reuse help this by making it cheaper to start new small community businesses that keep money local.

The solutions aren't in the system of money we choose, it's in building small sustainable ways to provide for basic needs, even in a small way.

Fiat can work fine on a finite planet, most money doesn't even take up physical space anymore, just bits in an account ledger database. Ideally in the future governments will make sure their currency is backed or based on labor time, and nothing is technologically preventing that, nor is crypto-currency required for it.

I can confirm, I've had two Fiats and neither worked properly

Eat the rich

Stockpile canned beans they will become the most valuable currency once the WW3 starts.

#NotAFinancialAdvice

What makes you think that "crypto has failed on it's goals"?

Socialism. The problem here isn’t with currency, it’s with capitalism.

Realize that all forms of currency are ultimately a grift to allow a class of violent weirdos to claim ownership over the fruits of our labor and that we could actually just share things with each other without commerce

Barter. Learn a tradable skill. Build a group of friends.

But also save money.

https://www.gocomics.com/calvinandhobbes/1991/11/29

Buy jewelry, gold and silver coins, gemstones, rolls of silk, fine pelts, expensive spices like vanilla beans (avoid saffron though, its perishable), fine porcelains and maybe a rare painting or two. Put it all in a big wooden chest with a big iron padlock on it, and bury it in your backyard. Then draw some sort of cryptic map to it in case you die unexpectedly, or forget where your backyard is or something.

Gold and silver.