Off the top of my head, I can’t think of any advance that didn’t at some point depend on people just dicking around to see what they could see.
“What happens if we spin this stick really really fast against this other stick?”
“Cool! What happens if we put some dried moss around it?”
“That’s nuts, man! Hey, I wonder what happens if we toss some of our leftovers in there?”
“C’mon over here, guys. You gotta taste this!”
At worst, a project like this keeps a lot of curious people in one place where we can make sure they don’t cause harm with their explorations. At best, whole new industries are founded. Never forget that modern electronics would never have existed without Einstein and Bohr arguing over the behaviour of subatomic particles.
Say the actual construction cost is $100 billion over 10 years and operational costs are $1 billion a year. Compared to all the stupid and useless stuff we already spend money on, that’s little more than pocket lint. We could extract that much from the spending of one military alliance and it would look like a rounding error. Hell, we could add one cent to the price of each litre of soft drinks, alcoholic beverages, and bottled water and have money left over.
Yes, with finite resources, we have to make choices. As long as there are some resources for people to just poke around, I’m good with whatever. If we’re actually looking for some place to drop a few billion, I actually don’t think another collider should be on the list, let alone at the top.
The problem as I see it is that “but what good is it” is used to limit pretty much all fundamental research.
I also think there are better places to put this kind of money, including on projects that we are certain have obvious potential to change the world for the better.
What I was getting at was the very idea that we absolutely have to know what the return is before we start. Just because we know the potential return doesn’t mean that it’s not research (as in your fusion example), but just because we can’t identify a return ahead of time doesn’t mean there won’t be one.
Also, I don’t know if there have been any tangible benefits from the LHC. Precision manufacturing? Improvements in large-scale, multi-jurisdiction project management? Data analytics techniques? More efficient superconducting magnets? I don’t know if those are actual side effects of the project and, if they are, I don’t know that the LHC was the only way to get them.
Edit: or, like the quantum physics underlying our electronics, maybe we won’t know for 50-100 years just how important that proof was.
bro pls (mander.xyz)