> That is to say, there is no cultural practice of "finger binary". ... That you know of. When did you memorize the exhaustive list of all cultural practices?

> That is to say, there is no cultural practice of "finger binary". ... That you know of. When did you memorize the exhaustive list of all cultural practices? > Finger binary is not a "thing" that's "out there". ... In your social circle. If someone mentions a programming language you've never heard of, do you immediately decry them as having "made it up"? I was taught finger binary several years ago as a way of counting the WPM of speeches. The method I use puts the LSB on the index finger, and involves tapping a table rather than forming a fist, in order to count more quickly. I have since taught several others. This certainly qualifies it as a cultural practice that's "out there."