Antos: 30 conversations is the sweet spot to validate startup ideas
Andrew Antos · Sold $10M business to bet on a side app—grew it to $20M ARR | Within · Aug 31, 2026 · at 18:33
Within founder Andrew Antos explains his customer validation framework to host Pablo Srugo.
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“What we found is like again and again, you want to talk to roughly 30 people to like validate an idea or invalidate an idea. 10 is not enough, because you can always find 10 friendlies or 10 unfriendlies. 50 or a hundred is too difficult, too many, right? But you can easily have 30 conversations in a couple of weeks. And 30 seems to be, like, a really good number to get that, like, initial validation.”
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