A year or two back, ranting at some website's idiotic abuse of Fitts's law[1], and actually read the background.

Fitts, Paul M. (June 1954). "The information capacity of the human motor system in controlling the amplitude of movement". Journal of Experimental Psychology. 47 (6): 381–391. doi:10.1037/h0055392. PMID 13174710.

* * * This shit dates from the nineteen-fucking-fifties. * * *

And people fuck it up all the time.

This is why we cannot have nice things.

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Notes:

1. I will be that guy and note you misspelled it. I've done that plenty myself.