Octal Number Base

What would happen if the dominant base for numerals was octal instead of decimal (which would change the base)? I'm thinking the Roman, Hindu-Arabic, Chinese, and several African numeral systems as the starters (since most modern languages have their number system derived from one of those and even thought OTL Europe uses Arabic Numberals, Arabic numerals might have been slower to adopt in Europe if they use base 8 while Romans used base 10).

There are languages with different bases. For example, the Aztecs used 20, some Sumerians used 60, and some Native Americans in California actually did use 8.
 
Would make binary a bit more intuitive for a greater range of people, for starters. Octal=>Binary is way easier than Decimal=>Binary.
 
Most languages are base-ten or (much more rarely) base-twenty because humans have ten fingers.

In fact, the only two languages where base-eight is dominant is Northern Yuki (extinct) and Northern Pame (340 remaining speakers in northern Mexico).

This probably requires a biological POD.
 
"Not much" is probably the right answer. Some things are a little easier or a little more difficult in different bases, but it's not like your choice of base stops you from doing math unless you choose something completely silly.
 
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