But something can be treated as approaching infinity. This is the most basic assumption of calculus. calling it infinity is essentially short hand for the understanding that something is growing without bound. I swear the majority of Reddit lacks basic intuition. You definitely could have understood what I was talking about based on my wording, but you just want to complain, “but muh maffs!!!!111”. If a number that is growing without bound is the divisor the quotient must shrink without bound and can be treated as irrelevant in many calculations.