MathxMatrix on Instagram: "Not all infinities are the same size. This was proven by mathematician Georg Cantor in the late 19th century. To understand how one infinity can be "bigger" than another, we have to change how we define "size." Decimal numbers (specifically "Real Numbers") are Uncountable. Cantor proved this using a famous method called the Diagonal Argument. Imagine you tried to make a list of every decimal between 0 and 1. Cantor showed that no matter how you arrange that list, I can