I don’t know where you got $4bn for ITER from. The project itself estimates a cost of €18-22 by the time it’s completed, with some estimates well over double th

I don’t know where you got $4bn for ITER from. The project itself estimates a cost of €18-22 by the time it’s completed, with some estimates well over double that in real terms. It’s also one of about 100 fusion reactors built since the 1950s. Comparing the budget for one area of research to entire defence budgets is frankly just giving up on reality.