Could TikTok breed the next generation of startups?

Stormi Steele, founder of startup Canvas Beauty, logged on to TikTok Shop in June to sell her hero product, a moisturizer that goes on slick and shiny, like the glaze on a doughnut. On a livestream, she chatted about her glazes with tens of thousands of her followers, who could then buy the product directly from the app. TikTok would get a small cut of the revenue. And within minutes, she’d sold more than 40,000 units, generating more than $1 million in sales. Steele spoke with a...