I think this article misunderstands 'lean' principles in their effect on startups. A lean/agile model isn't supposed to guarantee success, it's supposed to make

I think this article misunderstands 'lean' principles in their effect on startups. A lean/agile model isn't supposed to guarantee success, it's supposed to make you realize what ISN'T successful, and move away from that. Find an unsuccessful business isn't a guarantee of one day finding a successful one, it's a bet of not throwing a bunch of time and money away on a bad business.