He actually can claim it, and does so. And that tiny percentage he captures, well that's called a "sample". When you take a sample from a larger population, it is safe to assume it represents some of the same properties as the population as a whole. Figuring out which properties are shared is one of the reasons humans aren't being replaced by machines entirely in the analysis department.
It is your job as the reader to invalidate some of his specific claims using sound logic and evidence. Which of his claims are you refuting?
It is your job as the reader to invalidate some of his specific claims using sound logic and evidence. Which of his claims are you refuting?