@freemo Idk about that. If you met someone from 100 years ago, you'd sure seem like an oracle to them. I imagine that's largely true going back through human history. As a species, we seek to define and understand the world around us, and the only way we can truly do that is by finding these universal truths and using them as lenses. I don't think we've found many yet, but we're working hard on finding more.
I don't need confirmation from an omniscient oracle to confirm a fact as true. I just need to be reasonably certain that even totally foreign beings who experience life in a way that's unfathomable to me would still inevitably and independently come to the same conclusion, and I believe that to be true of "1+1=2".