Just because you can generate numbers between 0 and 1 doesn't make them meaningful probabilities.
Are these based on data? No, they're rhetorical tools used to sound quantitative and scientific.
Nobody will be applying the calculus of probability to these meaningless numbers coming out of someone's ass.
And most importantly, is he himself willing to bet a significant fraction of his fortune based on these socalled probabilities? I don't think so. So they're not probabilities.