Strip the mathematics off economics and what’s underneath is an argument. A very large, very old argument about who gets what, conducted in a language made of prices, offers, and refusals. Understanding your position in that argument requires exactly one question, and it isn’t how hard you work.

The question is what you can withhold. That’s the whole of it. Your leverage in any economic relationship comes from what the other side loses if you walk away, which is why a worker with a rare skill is paid more than a worker with a common one, why a strike is a threat, and why a customer is treated well in a competitive market and badly in a monopoly. Everyone in an economy is holding something back, and the price of anything is where two refusals meet.

Historically, humans have held four things. Labor, which is why most people have had any bargaining position at all. Custom, because production is pointless if nobody buys. Capital, if you have any. And, in some places and some centuries, the vote, which is the ability to withhold legitimacy from whoever is arranging things. Every gain ordinary people have made, the weekend, the pension, the safety inspection, was won by threatening to withdraw one of those four, and none of them was ever granted for being deserved.

Now watch what happens when a participant enters who can supply the first one, at a price that keeps falling, in whatever quantity is required. Nobody has silenced anybody. There’s no oppression in the story and no decision by anyone to reduce your standing. It’s just that the argument only counts voices that can withhold something, and the thing you were withholding is now available elsewhere. This isn’t a moral event. It’s a change in the structure of the conversation, and structures don’t apologize.

That’s the frame for this fortnight, and it explains why the economic questions are the ones I’d look at first if I had to pick a single place to watch. Everything in Act 3 so far has been philosophy about futures with no dates on them, and yesterday’s closer was honest about the poor record of that genre. Economies don’t have that problem. They respond to capability immediately, mechanically, without waiting for anyone’s opinion about what it means, which is why the ledger notices things years before the commentary does. If the arrangements this series has described are forming, they’ll show up in prices before they show up in anything else.

Here’s what the next two weeks look at. Tomorrow, the wage, and what happens to the concept when the competing supplier runs on electricity. Then the demand side, which is the objection everyone raises first and which is more interesting than its usual form. Then what a currency would even mean to something that doesn’t eat, and a slow-motion look at a transaction between two systems that takes less time than reading this sentence. Then supply chains rebuilt around the absence of hands, ownership as an entry in a database, and the honest case for and against paying everyone a wage for existing. A doubt post on why the economists have been right about all of this so far. And a closer on what economic output measures once the people in it are optional.

One thing to hold as you go. Nothing in this fortnight requires malice, misalignment, or any of the more dramatic material from earlier in the series. Every argument I’m about to make works in a world where these systems are exactly as helpful as advertised, owned by ordinary companies, doing precisely what their operators intend. That’s what makes economics the firm ground here. The good ending and the bad ones share an economy, and the economy is already being rearranged.

Tonight’s exercise, and it takes a minute and tends to stay with people. Write down what you can withhold. Not what you contribute, which is a different and more flattering question. What would actually be lost if you stopped, and who would feel it, and how long it would take them to replace you. Do it for yourself, then for your household, then for the town you live in. Most people find the list shorter than they expected, and the useful part isn’t the anxiety. It’s that you’ve just measured your position in the argument, in the only unit that has ever counted.