Comment by lieks
I have a theory that this generalizes to some extent.
Pitch perception is also logarithmic; an octave in music is a 2x ratio.
Memory is sort of logarithmic; you'd say a thing happened 1-2 days ago or 1-2 years ago, but not 340-341 days ago.
Same with age; someone being 10 years older than you is a much bigger deal when you're 10 than when you're 80.
It does! https://en.wikipedia.org/wiki/Stevens's_power_law
> Stevens' power law is an empirical relationship in psychophysics between an increased intensity or strength in a physical stimulus and the perceived magnitude increase in the sensation created by the stimulus