It was a typo. I'll fix it if you want.
It's the fuzzy boundaries of infinity, where anything is possible.
Generally speaking though, yeah, for practical purposes 2 + 2 is 5 for especially large values of 2 :D


Which is why it's a good idea to use rational fractions for as long as possible.

in theory, but in practice you get numbers such as 2.7172…(for example as a result of some constant number) which you can't make a fraction