Once people decide that technocrats, elites, experts, and gatekeepers aren't worth listening to, they become vulnerable to all sorts of policy scams. Slopulism that arises out of pure ignorance is very hard to correct, and social media — which elevates the dumbest and loudest at the expense of the most well-informed — probably makes it harder. But when slopulist ideas are being promoted by smart people with ulterior motives, it can be a lot harder to wake the populace up.