Let's have a look.

https://en.m.wikipedia.org/wiki/Irrational_number

In mathematics, the irrational numbers (in- + rational) are all the real numbers that are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers. When the ratio of lengths of two line segments is an irrational number, the line segments are also described as being incommensurable, meaning that they share no "measure" in common, that is, there is no length ("the measure"), no matter how short, that could be used to express the lengths of both of the two given segments as integer multiples of itself.

https://en.m.wikipedia.org/wiki/Quantum_mechanics

Quantum systems have bound states that are quantized to discrete values of energy, momentum, angular momentum, and other quantities, in contrast to classical systems where these quantities can be measured continuously.

The conclusion is wrong, i agree. That's the joke of the meme.

(Keep down voting if it matters to you. I'm only trying to explain a joke. The top post is in agreement with my statement.)