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Unfortunately I do not have the answer, and you would think that after 4 years someone might know this answer. I have been looking for the answer as well because I have been looking to help my kids understand programming. Similar to how the Playgrounds App companies programming to real life I was going to tie this concept to a race track or light switch, but that would just enter another level of confusion. Even in binary a 0 is Open / Off and 1 is Closed / On. I thought I might have been the crazy one but this article from Lewis University that goes into detail of how binary computing works lays it out well. ”A switch, unless it’s busted, can be either on or off, closed or open. A switch that is “on” or “closed” passes electrical signal through it, while a switch that is “off” or “open” blocks that signal. Computer Scientists represent an “on” switch with a 1 and an “off” switch with a 0.” https://www.lewisu.edu/experts/wordpress/index.php/whats-with-all-the-1s-and-0s/