
Tom Kando
I was recently watching the great old musical Brigadoon. The people of that mythical fantasy land come alive once every century. So I’m thinking: Why every century? Why not some other time unit? Why did most of the world agree to go decimal?
There are still exceptions, notably this country’s mishmash of measuring systems: Unlike much of the world, Americans measure distance and height in inches, feet, yards and miles, not centimeters, meters and kilometers. Our weights are in ounces and pounds, not grams and kilos. Volume is expressed in gallons, not liters, temperature in Fahrenheits, not centigrades, etc. But even in the US, science and medicine do most things decimally.
There is no question that decimal is a lot better than the hodgepodge of measurement systems we use. But even decimal is an arbitrary system, hardly reflecting the nature of the world. It is often said that the choice had something to do with our ten fingers.
A while ago I wrote a post asking whether mathematics is a discovery or an invention. In other words, is it embedded in nature, or do we humans use it to interpret nature? (See my post of Feb. 22 2024): ”Is Math a Discovery or an Invention?” or: Was God a mathematician?”
Today, I am thinking of something related: Alternative numerical systems. The big one that immediately comes to mind is the binary system, because computers use it and computers have taken over the world. If we went binary, years would be numbered differently. We learn in history that Charlemagne was crowned Emperor in the year 800.
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