Article · ~10 min read

Kunal Shah's Delta 4 Theory of Successful Startups

Kunal Shah · SeedToScale (Accel India) Free Intermediate India

Shah argues that to make people switch from what they already use, you need a large jump in perceived efficiency, not a marginal one. In a crowded market that is the bar for your wedge: the incumbent may be good enough for most, so your narrow segment has to feel a dramatic gain. Read it to sanity check whether your improvement is big enough to change behavior.

  • People only switch when the efficiency jump is large, not marginal
  • Look for inefficiencies incumbents leave in place, not just problems
  • A big enough delta makes the new behavior stick and spread
Open on seedtoscale.com ↗

It answers 6 questions

  1. What makes an Indian startup idea work when the market is so price-sensitive?
  2. My market is huge on paper but almost nobody is actually paying for solutions today. Good sign or bad?
  3. How do I evaluate whether an idea is big enough to be worth years of my life?
  4. What are the warning signs that I have weak founder-market fit and I'm forcing it?
  5. How do I turn a vague hunch that something is broken into a sharp, testable idea?
  6. How do I validate an idea in a crowded market that already has big competitors?

Read with it

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  2. The definitive essay on where good ideas come from: notice problems you personally have, don't force it. Use it as the lens for... paulgraham.com Essay · ~20 min read How to Get Startup Ideas Paul Graham
  3. The essay that put 'product-market fit' into the startup vocabulary. Read it for the gut-level description of what PMF feels... pmarchive.com Essay · ~15 min read The Only Thing That Matters Marc Andreessen
  4. The primary-source telling of the milkshake story, the single most memorable illustration of Jobs to Be Done, straight from... HBS Working Knowledge Article · ~8 min read Clay Christensen's Milkshake Marketing Clayton Christensen (via Harvard Business School)
  5. Turns the vague feeling of product-market fit into a number you can move. Ask users how they would feel if they could no longer... First Round Review Article · ~20 min read How Superhuman Built an Engine to Find Product/Market Fit Rahul Vohra
  6. Video · ~50 min How to Evaluate Startup Ideas Kevin Hale, Y Combinator
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