- Dec 13, 2017
But there's a difference between augmenting your vision with sonar and not having vision at all. How would a species that only relies on sonar know what a picture looks like or how would they create and operate information technology and use it to get to space? Plus there's the role the evolution of vision (even in cases where it diminished again later) played in the development of the brain in all cases of higher intelligence on our planet.Sonar, just off the top of my head. Bats and whales have eyes, but they don't do much at night or in the dark depths of the ocean.
I mean I can imagine it to be technically possible that they'd develop a system of record keeping and information technology solely based on touch and sound recordings but in almost all environment it would put them at a disadvantage to species that have vision.
Also considering how often vision has arisen on Earth life and how even micro-animals can at least distinguish between light and dark, I have trouble imagining a scenario where a whole evolutionary tree of life evolves from single celled organisms to intelligent life without ever producing visions.
Maybe some case where a extreme form of environment caused sight to atrophy in the immediate ancestors of an intelligent species (which is, for example, what I assume happened to the species in my avatar), but then again, they will have a harder time getting from simple tools to space ships.