Adam Wathan is 1 part metalhead, 2 parts online education juggernaut. Over the past few years, Adam has distilled his obsessive development research into several online courses and books, achieving millions of Dollars in sales. We rap about SaaS vs once-off payments, Pantera vs Slayer, why he uses Gumroad, the advantage of multi-tier pricing and of course his rapidly growing CSS Framework, Tailwind CSS.