Retail 1.0: SupermarketRetail 2.0: HypermarketRetail 3.0: E-commerceRetail 4.0: OmnichannelRetail Markets The $1T Opportunity to Build the Next Amazon in RetailThe next major technology shift set to transform retail is artificial intelligence. This means big opportunities for startups with new ideas.https://www.sequoiacap.com/article/ai-retail-opportunity/