In 1978, college drop-out John Mackey scraped together $45,000 to open his first health food store, "Safer Way." A few years later he co-founded Whole Foods Market — and launched an organic food revolution that helped change the way Americans shop. PLUS in our postscript "How You Built That," how Kyle Ewing created waterproof paper through his company TerraSlate. Learn more about your ad choices. Visit podcastchoices.com/adchoices