I won't judge our distant relatives, the cephalopods and chicken theropods, but we big apes are pretty dumb. Even with what we've got, it took us hundreds of t

I won't judge our distant relatives, the cephalopods and chicken theropods, but we big apes are pretty dumb. Even with what we've got, it took us hundreds of thousands of years to invent indoor plumbing. Vision, I still submit, is much simpler than "intelligence". It's evolved independently almost a hundred times. It's also hypothesized that it takes as few as a hundred thousand years to evolve advanced eye optics: https://royalsocietypublishing.org/doi/10.1098/rspb.1994.0048 https://royalsocietypublishing.org/doi/10.1098/rspb.1994.004... Even plants can sense the visual and physical world. Three dimensional spatial relationships and paths and rays through them are not hard.