@Luna the project's title so far is 'a prehistory of counting,' which is about as vague as its scope, which is something I gotta work on! so far, it's looking like it's going to be about how the brain physically processes arithmetic and numbers, and how that capability evolved (with attention to mathematics skills in non-human animals, and how the do that, and whether or not they're actually doing that.) and then evidence for numeric systems pre-the invention of zero, and a little section on the end where I take a dive into science fiction and ask how aliens might count.
Accessibility in legalese sounds . . . simultaneously very hard to achieve and very important?