E.g. imagine a society where human brains evolved just a little bit differently and >90% of population are dyslectics. This very obviously wouldn’t matter until about the time proto-writing changed into true writing, i.e. after urban development and proto-states. But then, such a civilization is trapped.
E.g. imagine a society where human brains evolved just a little bit differently and >90% of population are dyslectics. This very obviously wouldn’t matter until about the time proto-writing changed into true writing, i.e. after urban development and proto-states. But then, such a civilization is trapped.
There’s actually some evidence humans have made some adaptions to be better at reading, but I can’t find a source.
Being able to read would be a valuable advantage and after tens of thousands of years of evolution, more and more people could read.