alt Hacker NewsBuilding a new factory would cost $20 billion and take 3 to 4 years [0,1]. With chip output capacity and AI boom profit margins, it would take just under a decade to break even. If the bubble bursts and chips return to pre-boom levels, then it would take over 30 years to break even.
Ford had almost $20 billion in EV car manufacturing investments planned for the mid-late 2020s and the abrupt end of the EV subsidies cost Ford billions of dollars and they have abandoned multiple investments.
If you do nothing, you still are rewarded because you are making pure profit in either scenario. If you invest billions then you are digging out of that for years regardless, and could be in the whole for decades if you bet wrong.
[0] https://www.construction-physics.com/p/how-to-build-a-20-bil...
[1] https://techovedas.com/what-does-it-take-to-build-a-semicond...
Correct, if you invest billions then you are taking a risk which could either pay off or not depending on whether you're right about that investment being an efficient use of society's resources.
Existing fabs are currently reaping the rewards of their previous wise investments in building out this capacity in the first place right before a shortage. Without those past investments, the shortage today would be even worse. Future rewards will be allocated based on who correctly predicts the best use of current resources to meet future demand (whether that includes huge investments to build even more fabs or not is yet to be discovered).