this post was submitted on 23 May 2025
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It's a language issue. We say 10 because we don't have a single digit symbol to represent 10. If a alien with 20 fingers came we wouldn't recognized their symbols for anything bigger than 9. Base 4 creatures don't use 4 because after 3 comes 10 for them.
Base 16 is used all the time in computer science. The symbols for 9+ aren't arcane or unrecognizable it's 0 1 2 3 4 5 6 7 8 9 A B C D E F. It's often written with an 0X in front to indicate hexadecimal or something like 'h for hex and 'd for decimal.
Examples:
Yeah I know but base16 creatures would use 10 to express 16 not "G"
What do you mean they don't use A B C D E for 10 11 12 13 13 15?
We wouldn't recognize the aliens symbols for 0-9 at first either.
should interstellar contact ever actually happen, maths would be the first (and for a long while, probably the only) thing we'd actually be able to communicate in.
What do you mean? X is 10. 1 symbol.
Considering this, for us humans base-10 is base-X
For the four fingered aliens base-10 is base-4. But they don't call it base 4 because they don't use 4 like we don't use X. They say base-10 because for their language it's how they say 4. And that applies for all bases.
Actually, I saw this meme before and I didn't notice the alien has four fingers. Do we use base 10 because we have that number of fingers??? Is there really a proof of that?
It's a good reason for us to use base 10, but in the past many people have not used base 10. However, the bases a society use often are somehow tied to something about the body. As an example (haven't looked it up for a while, sorry), I think there is/was a group that used base 8, and counted on the gaps between their fingers.
So we should say base 9+1? Or base ✋🤚 this many.
Hey mathematicians, is this a good universal way to communicate number bases? I think y'all would call it 1111111111₁ or something like that
Fun tangent, on my hands that would be 1023 because I count in binary on my fingers