What kind of cost refuses to divide?

The cost does not amortise. Two objects need two rooms.

Nobody floods a system out of malice. They flood it because flooding is cheap.

Almost every cost in production behaves like an oven. You buy it once and bake with it for years, so the oven's share of each loaf shrinks toward nothing as you bake more. That is amortisation. Volume is not an aggressive strategy under those conditions. It is the only rational reading of the price.

The obvious move is to make it expensive. That does not work. A large cost still divides. Size was never the property that mattered. Divisibility was.

Whisky refuses. A barrel needs years, and no two barrels can share those years. Build a warehouse ten times bigger and the building divides. What does not is each barrel occupying its space for its stretch. The structure spreads. The waiting refuses to.

The digital equivalent is work that has to hold its own materials the whole way through. Two of these at once means two rooms, not one larger room. No arrangement lets ten of them make do with nine. Why that work holds a region, and why memory is the sensible way to hold it, is Why memory, and why a clock?

What refuses to divide is not fuel burned for a race. It is the holding, once per object. Buying machines and writing software still amortise. The holding starts again from zero every time. Specialisation can attack the arithmetic. It does nothing to the holding. Capacity comes from the same market at the same price.

This holds while keeping the region is cheaper than reconstructing it on demand. That is a reasoned expectation, not a measured floor against a well-funded party. Someone content to accumulate slowly, one a night, pays what an honest maker pays. Whether a stockpile assembled over months matters is a property of whatever is being defended, not of the construction.

The claim is not that you cannot make many. It is that how many depends on what you are prepared to spend, and that figure climbs with the count instead of flattening out. How the cost is put in the object is How do you make a digital thing scarce?