eBay CEO John Donahoe: I Wish We Could Buy Airbnb But We Can't Afford It

At Fortune's Brainstorm Conference in Aspen today, eBay CEO John Donahoe joined the stage with Airbnb's co-founder and CEO Brian Chesky to talk about how they mentor each other (you can watch the livestream here). The two CEOs have been informally advising each other for a few years, after being introduced through eBay board member and Airbnb investor Marc Andreessen. In fact, Donahoe asked Andreessen who the smartest founder was in Silicon Valley, and he immediately responded with Chesky's name...