Quote:
Originally Posted by bradford
My guess is that had we evolved with a thumb and three fingers on each hand that we would be using base 8, we would regard that as a perfect number, intimately bound up with the very nature of divinity, and we would have amassed many thousands of years worth of explanations why that was so.
Our math would look a little different but it would work.

And the 12 system (inches, pounds shillings pence  yes I am that old) seems to relate to a 'finger' counting system of using the thumb (so that's not counted as it is the 'counter') on each joint of the finger. One hand = 12 on the (say) left, then one joint on the right = 12, 2 joints on the right 24, plus one finger and one joint on the left, = 28 and so on.
Perhaps this is where we get that 3 and 4 and 3/4 are so important to us?