Do you think having 6 fingers will prompt mathematicians to move from Base 10 to Base 12 (which would be more convenient since 12 has factors of 1, 2, 3, 4 and 6)? I’m sure that the only reason we use Base 10 is because humans have 10 fingers.
Wendy
Didn’t the Sumerians or someone back in the day use Base 60?
JimA
Two points to you, @JimA759s!
Wendy
360 was used for degrees in a circle–so many divisors with nothing left over (2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 40, 60, 120, 180).
I don’t know. But it would give a boost to feet and inches! 
Sexagesimal is the best system for counting on your fingers, and that is the probable origin of the (clearly superior!) Sumerian system of numeration. You count to successive twelves on your right hand by moving your thumb successively onto each of the three phalanges on each of the other four fingers. You use the five fingers of your left hand to count how many twelves have been counted, up to sixty. Bingo.
The Sumerian language and culture are isolates, with unknown origins, but there intrigueing evidence that they were amongst the very very early herdsmen, back during the ice age, and rapidly accurately counting sheep, goats, cows, is essential for herding.
My Dad taught the system to me when I was a little kid, and I found it very quickly became rapid fire habitual. As a senior “trailsman” at Philmont Boy Scout Ranch I astounded the herders there with my ability to out count everybody.
d fb
Please edit: “to count how many TWELVES have been counted, up to sixty. Bingo.”
The Captain
Done. Thank you! Everybody needs an editor…at least…some need a shrink.
d fb
The first world is all base 2 today.
Base 2 is the revolution.