Why do we have a dominant hand?
In: 27
It turns out the vast majority of things we do with our hands is boring, but a subset of what we do requires real dexterity. As we became tool makers, the percentage of things that required dexterity has increased.
Putting extra brain capacity into a single hand, rather than spreading it across two hands allows that single hand to be even better than it otherwise could be. It makes possible many things that two balanced, but less capable hands could never do.
Latest Answers