Pretty sure it would. After all there are multiple precedents: at least three "unlimited budget" attempts at changing the world worked fine: WW2, Manhattan Proj

Pretty sure it would. After all there are multiple precedents: at least three "unlimited budget" attempts at changing the world worked fine: WW2, Manhattan Project, Apollo program. The first ended the British imperial ambitions and established the US as the undisputed world leader, the second did the same in the nuclear arms race, and the third repeated the feat in space. This doesn't have to be super complicated like ITER.