Metric should have been base 12. You get more typical factors than base 10, and it's not an absurd deviation from base 10 (base 60 would allow for the same fact

Metric should have been base 12. You get more typical factors than base 10, and it's not an absurd deviation from base 10 (base 60 would allow for the same factors as both 12 and 10, but I doubt anyone would be happy to adopt that)