1.What is the main trend the article describes?
2.The Census Bureau labels an application "high-propensity" when the new business is likely to do what?
3.A founder in the article compares starting a business to a chemical reaction with an "activation potential." What is his point about AI?
4.More than half of Shopify-supported sales now come from niche categories outside the 100 most common. Which concept does this illustrate?
5.Which of these is NOT one of the article's three explanations for the entrepreneurship boom?