> A dollar is an entirely fictional unit and trillions of it can be manufactured at no cost
It’s still a useful proxy for resources allocation and viability.
It’s still a useful proxy for resources allocation and viability.
While we could reason in "performance / watt" and "performance / people", "performance / whatever other resource involved", and "performance / opportunity cost of allocating these resources to this use case and not another", "performance / whatever unit of stable-ish currency" is a convenient and often "good enough" approximation that somewhat encapsulates them all.
A simplification, like any model, but still useful.