Apart from having 10 fingers, is there any other reason we count until 10 and then repeat?
In: 8
Nope, purely because it is easy to do on our fingers. It is convenient and that is it. And not everything uses base 10 for the same reason, convenience. For example computers use base 2 and base 16 because they map nicely to computer logic, ie: they are more convenient. And not all cultures use base 10 either. Ancient Egypt (and others) used base 12, and it was also counted on fingers. Instead of one for each finger they counted each joint on the four fingers of a hand using the thumb to point to the joint. This is also why clocks are 24 and 60 because they are done in base 12 and were originally designed by those same ancient Egyptians.
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