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.
"A different Alchemy" is a fascinating novel that deals with the subjects not anyone would dare to touch. How one cope with the most terrible loss? Everyone would answer this question differently, but in this case Jeffrey, a grieving father, chooses to go against the flow, seeking a path of his own. Through his journey, we are made to reflect on the general tragedy of the end of the world as well. I found the author's way of presenting the story delightfully refreshing, very readable, easy to connect to, easy to understand and reflect. A highly recommended read!