A Zero Value
What is nothing?
Today we can count on new technology year on year; but, there was a time when technological change occurred over centuries. The discovery of zero had a profound influence on the advancement of mathematics.
When I was a kid in grade school we were told that “zero is undefined”. I still go along with that. It’s the only number we cannot assign a unit to. Nothing from nothing leaves nothing. There were no centimeters, there, Sir!
Numerically and logically every learner, especially learning maths and/or programming has to come to grips with this value.
The only other number that fits into this domain of numerical reason is 1. That’s another story.