/sci/ - Science & Math

So, I've had conversations with a couple of people who have an immensely better understanding of mathematics and physics than I, and they claim that quantity does not exist in the universe. That the universe does not operate in quantities, and the the concept of quantity is an unnecessary one.
Now, in spite of having been given few and vague arguments supporting this, they have made me inclined to believe them, especially taking into account how commonplace it is for the human brain to interpret things incorrectly.
But I am not satisfied with the arguments I have been given, and I want to more fully understand what the implications of this might be for our understanding of reality, seeing as the concept of quantity is so deeply hardwired into our brains that we cannot understand things otherwise.
So, I'd love to hear a detailed explanation from anyone who has a better understanding of this, and can prove this to be correct(or incorrect) without using complex math.

Thank you.