the.com/amazon personalization
the algorithm that knows you want an air fryer before your arteries do.
means a recommendation system that predicts what you will buy by comparing your behavior to millions of other shoppers in real time.
from launched in the late 1990s, amazon built collaborative filtering at scale, quietly turning every click, cart-add, and page-lurk into a data point long before facebook and google made surveillance mainstream.
revenue shareestimated to drive over a third of sales
item to itemamazon patented comparing products, not just users
real timerecommendations update within milliseconds of a click
cold starteven brand-new shoppers get guesses from browsing alone
for instance
frequently bought together — bundles suggestions to raise average order value
kindle recommendations — reading history quietly shapes your next book nudge