I'm not sure there's immense danger. VRBO/ADP/PayPal/UPS/Xdrive 2.0 aren't super risky. Basically going in to huge categories and "doing it right". Again, easier said than done. I get that. But with 100 startups per year, an incredibly smart group evaluating, a priceless 3+ months, etc, I'd like to see even better stuff. Sure, maybe slugging percentage is the better number.