Earth is about 6,000 years old according to the Jewish calendar, and according to revelations by Jesus Christ. Humanity has never had a stupid caveman phase. We’ve always had a similar range of intelligence. It’s just that with education, generational progress, and iteration, our knowledge has grown exponentially. (That doesn’t discount that at some point some individuals hung out in caves and drew on the walls.) What about the light from stars taking inconceivable lightyears of time to reach us…