Why 1+1=2 is beautiful
1+1=2 Yes. And? I bet this was one of the first equations you wrote down. Without understanding it much, we would scribble it down on a piece of paper, and it would usually be followed by 1+2=3 or something of the sort. But there's much more to this seemingly simple equation than we could care to think when we were four. Firstly, what is '1'? My philosophy teacher defined it as the existence of a single quantity. Okay, so what is 'quantity'? Quantity means 'number', since a 'number' is just a name we assign to an arithmetical quantity. So...what is 'number'? This is the ultimate brick wall humanity hits. You see, we invented the concept of number as a way to describe the quantities we perceive, and somehow the universe works perfectly according to this system we invented. Take 𝜋, for example. Most of us know that it is approximately 3.14, that it is irrational and (most importantly), it is the ratio between the circumference (...