We don't know how to build a true quantum computer. But if you suggest we should also spend money on that, I agree. I don't think it's a smart idea to compare t

We don't know how to build a true quantum computer. But if you suggest we should also spend money on that, I agree. I don't think it's a smart idea to compare the validity of physics sub-fields. Look at the total amount of money that is spend on science compared to any other program. It's a joke. And it's not that we the people don't want it. Ask them, ask how much they think should be spend on science. It's multiples of what's actually spent.