So many issues. First, that paper doesn't claim what you say it does. Second, it's just not a great paper. Even if we accept the sketchy premise, it fails to di

So many issues. First, that paper doesn't claim what you say it does. Second, it's just not a great paper. Even if we accept the sketchy premise, it fails to distinguish overfitting from a successful test. Numbers of the form (a+b*sqrt(2) can approximate almost any number to within 0.03 units, yet there's no discussion of fitting errors to address it. You should not take papers like these as fact.