What a waste. So many more science experiments with better expected ROI could be funded for the money needed for the FCC, and we're not even expecting any significant new insights from it.
2. There is no world in which this applies to particle physics at this point, especially using radio frequency particle collider tech. This is known physics and there are no mysteries in the regime the FCC would reach.
And how do you measure payoffs? With how much money you get in return? Should scientific research expect this?
Ok, like what? Let the scientists at CERN decide what to spend their funding on.