Steve Madden, founder of the billion-dollar footwear brand that takes his name, discusses why there'll never be a replacement for retail, what he thinks of “The Wolf of Wall Street”—the famous Leonardo DiCaprio movie that features the story that led to his downfall—and his return from addiction and 31 months behind bars. “First of all, getting out of prison—it's the greatest feeling,” he says. “For the first month, you're floating in the air.” Brought to you by Shopify Plus, the enterprise platform powering brands from Allbirds and Gymshark to Staples and Heinz. Join the revolution at shopify.com/plus.