> why did you identify the issue as "But it is not revenue for SpaceX, which is the error OP made"?

It was an error by implication. They responded with something that appeared to disagree when I responded that any profit SpaceX earns under GAAP solely depends on the revenues and expenses, and is not dependent on Google’s investment.

> The cost of AI data centers is almost entirely the capex (10% opex, 90% depreciation)

The operating costs might not vary much, but these boxes are not cheap to power, house, and cool. Not sure about the 10% opex claim, but am happy to see real world numbers.