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Michael Seibel + Dalton Caldwell · 2023 · 6 min

Tar Pit Ideas (and How to Spot Them)

Some ideas seem obviously good but trap founders for years with no real product-market fit.

Key Takeaways

  • 01Classic tar pits: 'Yelp for X', social network for niche, marketplace with no clear sticky side, dating app for sub-segment.
  • 02Tar pits feel addictive because they're easy to build a demo of and easy to get a few enthusiastic early users.
  • 03The trap: those users don't generalize. The next 100 are 10x harder than the first 10.
  • 04Test: ask 'what changed in the world that makes this possible NOW?' If you can't answer in one sentence, it's probably a tar pit.

Distilled

Dalton and Michael keep a running list of ideas they see fail year after year. The pattern is almost always the same: a founder builds something genuinely cool, gets to 100 users, then plateaus for 18 months while convincing themselves the next feature will unlock growth.

Reality check: if the same idea has been tried by 50 YC batches with no breakout, the problem is the idea, not the execution. Pivot, don't double down.

Source

YC Startup School — Tar Pit Ideas (and How to Spot Them) →

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