Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
This book is the worst I’ve ever read, it’s so bad it’s borderline hilarious. This guy’s a PhD in Theoretic physics, and writes like one too. There are bits and pieces of somewhat normal advice, like pointing out the financial benefits of riding instead of driving, but then he just.. loses it, and starts writing about “homeotelic vs heterotelic responses”, or “tensegrity”. This man is not normal.