the problem i have about an "absolute truth" is that we as humanity know next to nothing about the universe, or how it works. i don't mind that we excel in what we have made ourselves, such as math of various kinds, but as soon as you interpolate the absolute abstract image of math on the concrete physical universe, there's bound to be errors everywhere.
this is why in physics you can only prove things empirically; there cannot be anything absolutely proven in the real world. because of that, and because of the discovery of quantum mechanics, i am very much beginning to doubt that this world is as objective as we try to rationalize it as. it would be ignorant to assume that we know, or are even able to comprehend every truth about the universe.