Founder of Airtable, Howie Liu, built his first company at age 20 and sold it to Salesforce just a year later. The second time around, he's built a new platform that's already valued at over a billion dollars, putting Airtable in the rarified group of unicorn tech companies. Liu shares how he's found success via a slow and steady approach, his aspirations to become the next great tech company, and why he prefers farming metaphors to the wartime ones so often used by entrepreneurs.