The person proposed a method of counting in a hexadecimal system on the fingers.
It's simple. We use the thumb of one hand as a pointer, and we consider them not only fingers, but also cavities between them (the gap between the counting finger and the nearest index finger in normal people cannot be calculated, so there are 16 total counting objects, that is, 9 fingers remaining and 7 cavities between them, between little fingers - does not count). And suddenly in the comments it turns out that in India they are taught to count! Is this the reason for the recent rise of India in the market of programmers? Suddenly realized their cultural advantage in this matter - well, go ahead.