The question by an economist was, “What’s is the financial gain of running an experiment like this and the discoveries that we will make in this experiment?”.
And it’s a very, very simple answer: I have no idea.
We have no idea.
When radio waves were discovered, they weren’t called radio waves because there were no radios. They were discovered as some sort of radiation.
Basic science for big breakthroughs needs to occur at a level where you are not asking “What’s the economic gain?” You’re asking “What do we not know, and where can we make progress?”
So what is the LHC good for? Could be nothing other than understanding everything.
— David Kaplan, Theoretical Physicist on Particle Fever, around minute 20.