I've found it easier to reason about when I think of it as "how quickly does the set of number grow as you add more to it". It becomes particularly apparent whe

I've found it easier to reason about when I think of it as "how quickly does the set of number grow as you add more to it". It becomes particularly apparent when you think about it on a finite scale. 0 to 100 * 100 integers * 50 odd numbers, 50 even numbers * infinite floats (unless you only represent part of the float)