Grant Lafontaine built Whatnot into a $20 billion live commerce platform by starting with a tiny niche—Funko Pops—and using scrappy growth tactics like viral giveaways and influencer partnerships. He reveals how he scaled from 30 sales in month one to $1B in annual GMV in three years, why focusing on small problems beats chasing big markets, and why most founders move too slowly to actually be moving fast. Whatnot grew from 30 transactions in December 2019 to $2.3M in sales by year-end 2020, then to $163M in 2021 and over $1B in 2022 by launching live selling and expanding beyond Funkos into 9-figure seller operations.