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 is a fantastic but challenging book. It makes so much sense but goes against society in so many ways. We took on the challenge just three weeks ago and the difference has been amazing. We still have a long way to go but the results are clear. A must read for all parents and parents to be!
Each chapter is long but with not many stopping points. So make sure you set aside the time to really take it in. It will be worth it.