I created this page to explain a point about epistemology. Default to nonexistence is not universal. Whether or not we default to an assumption of existence or nonexistence depends on necessity. If neither are required, we just don’t make an assumption. If there is more danger if something exists, we assume existence. For instance, we assume drugs have dangerous side effects, until shown otherwise. We’re also risk averse, so even though this page does not contain any harmful material, one might still be cautious about clicking a link to it.