" Here’s some startup pedagogy for you: When confronted with any startup idea, ask yourself one simple question: How many miracles have to happen for this to succeed? If the answer is zero, you’re not looking at a startup, you’re just dealing with a regular business like a laundry or a trucking business. All you need is capital and minimal execution, and assuming a two-way market, you’ll make some profit. To be a startup, miracles need to happen. But a precise number of miracles. Most successful startups depend on one miracle only. For Airbnb, it was getting people to let strangers into their spare bedrooms and weekend cottages. This was a user-behavior miracle. For Google, it was creating an exponentially better search service than anything that had existed to date. This was a technical miracle. For Uber or Instacart, it was getting people to book and pay for real-world services via websites or phones. This was a consumer-workflow miracle. For Slack, it was getting people to work like they formerly chatted with their girlfriends. This is a business-workflow miracle. For the makers of most consumer apps (e.g., Instagram), the miracle was quite simple: getting users to use your app, and then to realize the financial value of your particular twist on a human brain interacting with keyboard or touchscreen. That was Facebook’s miracle, getting every college student in America to use its platform during its early years. While there was much technical know-how required in scaling it—and had they fucked that up it would have killed them—that’s not why it succeeded. The uniqueness and complete fickleness of such a miracle are what make investing in consumer-facing apps such a lottery. It really is a user-growth roulette wheel with razor-thin odds. The classic sign of a shitty startup idea is that it requires at least two (or more!) miracles to succeed. This was what was wrong with ours. We had a Bible’s worth of miracles to perform: "
― , Chaos Monkeys: Obscene Fortune and Random Failure in Silicon Valley