These Founders (Really) Fight
This Ain't No TED Talk
"When you spar with Mike, you kind of do it in public. With other people watching you, it's very nerve wracking. You think, 'what if I look stupid?'" says David Chen, pictured, a student of Onello who co-founded early-stage start-up NunaHealth. "It's almost the same as when you give a presentation to a conference or something. It helps, because giving a presentation is so much more pleasant than being chased around the ring."