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.
Using research, logic and synthesis from her other great books, Naomi has shown how Branding, Neo-Liberalism and Climate Change denial have created the Trump monster. Fortunately she doesn't leave us wallowing in collective self-pity and lethargy but gives hope with alternative goals and strategies. A great read that one would expect from this author.