Black walnuts are probably nature's toughest nut to crack. But one man--television producer and newbie farmer Mike Trinklein--is determined to prove that it's a crop worth farming for. In this episode of Proof, Mike walks us through the history and benefits of these nuts, and shares his own scheme to get rich...slow off the land.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info. Learn more about your ad choices. Visit megaphone.fm/adchoices