Which e-commerce innovation, introduced around 2010, revolutionized online retail by using algorithms to analyze customer behavior and create personalized product recommendations at scale?

E-commerce has transformed drastically over the decades, with innovations reshaping how consumers shop and how retailers operate. This trivia question explores a pivotal innovation that significantly altered the e-commerce landscape, creating new opportunities for personalization and customer engagement. Test your knowledge about the technological developments that have driven the modern digital shopping experience!

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Collaborative filtering recommendation engines
QR code checkout systems
Augmented reality try-before-you-buy interfaces
Blockchain-based loyalty programs