Separate from senses, the native human perception of numbers is also proportional/logarithmic rather than absolute: http://web.mit.edu/newsoffice/2012/thinking

Separate from senses, the native human perception of numbers is also proportional/logarithmic rather than absolute: http://web.mit.edu/newsoffice/2012/thinking-logarithmically-1005.html http://web.mit.edu/newsoffice/2012/thinking-logarithmically-... (Someone at MIT recognized this story's relationship to Weber-Fechner enough to tag it with those words, though they don't appear in the text.)