>>11110897Cosmology and physics are intrinsically linked, knowledge in one field helps understand the other
But yes, a dollar spent on physics directly will yield more knowledge of physics than a dollar spent on cosmology. But eventually you get into diminishing returns where you're not making any one field go faster by putting more money into it.
Like right now we're at the stage where the only way to get fusion working at all is to build an oversized reactor, then once its operating, use the data from operation to learn how to shrink it. Funds aren't withholding the construction and you'll just have to wait until it's done. You could spend the money to make more experimental reactors in parallel but it would just be wasted. And when we have a working reactor, there's a finite number of best guesses as to how the second generation reactors should be designed. So you spend the rest of your GDP on the other sciences.
