I am sure I was admitted on the basis of mine, so not sure why you’d pass that up. AmherstClass2020 is incorrect though - it certainly isn’t a weed out mechanism, but by filling it out and taking the time to craft an essay, irrespective of your intended major, you are raising your chances of admission by painting a clearer picture of yourself and demonstrating greater interest. So, in short, complete it if you really want to go to Williams.