I just want to know where that estimate comes from - as far as I know, any estimate of cost is a WAG. For example, my WAG with today's new info: - 167k per sat

I just want to know where that estimate comes from - as far as I know, any estimate of cost is a WAG. For example, my WAG with today's new info: - 167k per sat construction cost - 20 mill per launch (at-cost WAG) - 333k launch costs per sat - 500k per sat total cost these numbers give a final 12000 sat constellation cost of 6 billion. The initial 1600 sat constellation comes to 800million But if my assumptions are off, it could be way less or more. If they make the satellites even cheaper, or at cost launches are less, or they end up being able to launch on Starship, it's significantly less. If sats cost more, or launches are more, then the cost goes through the roof.