Please, how can any human being be so absolute about anything? Modern humans emerged ~300K years ago (or at least that's what we know so far), so how on earth c

Please, how can any human being be so absolute about anything? Modern humans emerged ~300K years ago (or at least that's what we know so far), so how on earth can we be sure about anything? Our science is nice and all, and can help us built amazing devices that save lives and allow us to explore... but all we have are models. Theories. Zero certainty. If anything, science is all about: "I have no idea what this is, but I have a model that seems to explain certain scenarios. Let's stick with it until someone more intelligent than us provides a better model". We may be "sure" about certain "laws" (e.g,, thermodynamics, speed of light, etc.)... but I think it's a mistake to be so absolute about them.