Please, don't build another Large Hadron Collider
As someone who did their PhD at CERN - I agree.The place is fantastic, you get to meet great people and life is cool.But what you are working on is completely useless for humanity. Knowing that there is a quantum foam is knowledge that brings us nowhere. If someone could answer to this "and so what?" in a meaningful way I would be glad to change my mind. For the time being, the energy scale we are making these discoveries is not useful."yes, but this is fundamental science..." → yes it is, but where does this fundamental science helps in everyday problems? Have we had a case where the Higgs boson changed anything in our life?The quantum mechanics of the 1920's changed our everyday world. We could build a whole technology on it, and understand things that changes our everyday life. Is there a comparable impact on knowing that the Higgs boson is +/- 10^-9 (or whatever) aligned with the theoretical model?We have so many problems where physics is needed (energy production to start with, and then exploring biology), the money should go there instead. Even if it means having less particle physicists the same way we have less philosophes.