We choose the economy we want.

Part 3 of a series on smart money — live and open at boundedeconomy.com.

Part 2 ended on "let's build it." But there's no single it. The rules are levers, and where each one sits is a choice — yours. This isn't an economy handed down. It's a workbench.

Move the levers.

Every rule is a dial. How high the floor sits. How far the ceiling reaches — 4× the floor, like Mondragon, or 20×. How fast idle money melts. How much of the surplus past the cap becomes your own savings versus the common pot. There's no one right setting; there's the setting your community picks. A tighter town clamps the cap and shares more. A looser one opens it up. You don't inherit an economy. You tune one.

What the floor is really for.

Step back from the mechanics. Why does anyone pile up in the first place? Not greed — fear. Not knowing if you'll be okay: if the job holds, if the bill lands, if you've saved enough. So you grab more than you need, just in case. Prudence, not villainy. And a whole society of "just in case" is the pile.

So the floor isn't only a net under you. It's the thing that quiets the fear that builds the pile. Guarantee it and the reason to hoard goes soft — you bound the pile from the outside with the cap, and drain it from the inside by removing the need for one. The worst part of an uncertain future was never the smaller number. It was not knowing. A floor turns that into a promise.

Rigour, not vibes.

That's the humane case. Does it survive the math?

So there's a model, not a manifesto. Run money the way physicists do — people as particles, trades as collisions — and ordinary money condenses to one winner. That lopsided end is an attractor, a place the system is pulled back to no matter where you start — which is exactly why redistribution feels like bailing a boat. Turn the bounds on and the attractor moves: the tail never forms, for any input you feed it. Inequality settles near a Gini of 0.20, where a real economy sits at 0.81. Cap the wallet and effort drops; switch on recognition and it climbs back to full. None of that is hoped. It's measured, against the field's own equations, agent for agent. Bring an argument, settle it with a number.

A ledger, not a slide.

And it isn't a paper. There's a live ledger running the same math — a wallet, a floor that pays out, a cap that converts. Change a dial, run a year, watch inequality stay bounded.

But the point of a ledger isn't that it runs. It's that you never have to trust it. The books are open, every line tamper-evident — edit one in the dark and the whole chain lights up red, checked in your own browser, not taken on our word. Any new money asks you to trust it. This one asks you to check. Don't trust, verify.

It runs today — unfinished on purpose, but real, and yours to audit to the last cent.

Open — come break it.

None of it is owned. The code is open and free to fork; the first community on it is the one building it. So the next move isn't ours. It's yours.

If you're an economist, try to break it — the exit problem, the edge where this touches real money, whether recognition really holds effort up. If you're a builder, try to harden it — proving one human is one account, the flow cap, the membrane. The hard parts are flagged in big letters, waiting for you. I'd rather a friend break this now than have reality break it later.

So choose.

The room was never fixed. The rules were always a choice — we just forgot we were allowed to make one.

So make it. Move a lever. Run the books. Break the thing, or help build it. The economy we want isn't handed to us. It's chosen.

Choose.