Essay · ~20 min read
The 18 Mistakes That Kill Startups
Paul Graham · YC Startup Library Free Beginner
Graham wrote this after watching hundreds of early companies fail, so the failure patterns are observed, not theorized. Two of his mistakes go straight at trend-chasing: the derivative idea (building an imitation of whatever is hot) and the marginal niche (picking a weak market to dodge competition), both of which trace back to his root failure, not making something users actually want. It is a good starting point for pressure-testing whether you are building on a trend or just following one.
- Copying a hot company (a derivative idea) is a top killer: real startups usually start from a problem the founder personally felt, not from a trend to ride.
- Chasing an obscure corner to avoid competition is its own trap, you can only dodge competitors by dodging good ideas.
- Every mistake funnels back to one test: are real users demonstrably choosing what you built?