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.
I’d been meaning to read this book for a while. As it was Japanese in content but told through a western mindset. A lot of ideas similar to the works of Gretchen Rubin and Stephen Covey. Even a bit of Marie Kondo’s Spark Joy philosophy. If it’s not sparking joy - make a change. The interesting link between purpose and longevity is a good one and easy enough to understand. Living with purpose equates to less stress and longer life. 10 steps to longevity in the end - Nothing striking or groundbreaking revolutionary but similar trains of thought.
It may not be the secret to a long and happy life, but it’s definitely a start in the right direction. Lots of clear simple actionable insights for changing your life for the better one step at a time.