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.
Great examples and level of detail. Well researched. Covered contemporary and historical figures which gives you an idea of the different challenges during the differing periods. I need to re-read the book.
This book provides insight on how anyone and everyone has the capacity to achieve. It describes what mastery is and proceeds with examples of real people facing their own challenges and how these were not in the way but how they were part of their journey.