"Please don't post shallow dismissals, especially of other people's work. A good critical comment teaches us something."

https://news.ycombinator.com/newsguidelines.html

It's certainly a big reason why we're so adept at counting but don't you think speech plays a big role too (and could be sufficient) ?

I mean numbers are fingers but they're also a kind of song "one two three.." you map on things.

> also a kind of song "one two three.." you map on things.

Apparently it's as easy as "A, B, C...".