Unproveable superstitious rubbish. Irrational numbers exist as ideas, but there is no physical evidence that they are found in nature. We have processes that in their ideal limit will converge to numbers known to be irrational, and the law of large numbers certainly makes them appear to be such, but there is no physical quantity that is measured irrational. In fact we know that at some point we cannot measure much anymore so even the illusion of infinity is null.