This reminds me of this: https://news.ycombinator.com/item?id=12719273#12720638 https://news.ycombinator.com/item?id=12719273#12720638 > Fun fact: you can coun

This reminds me of this: https://news.ycombinator.com/item?id=12719273#12720638 https://news.ycombinator.com/item?id=12719273#12720638 > Fun fact: you can count to hexadecimal on the fingers of one hand. > The way it works is that each of your four fingers has four well-defined places on them: the three joints, plus the tip. You use your thumb to point at one of these. The first finger represents 1-4, the second 5-8, the third 9-12, the fourth 13-16. You count up and down by moving your thumb. (...) > As a special bonus: if you point to the fleshy pads of the fingers instead of the joints, you can use the same system for base 12.