[KongchangAI]
Person

Rahul Vohra

Founder of Superhuman and a serial entrepreneur known for building the premium email client Superhuman, with a focus on product efficiency and user experience.

Timeline (last 90 days)

Oct 23

Superhuman Mail founder Rahul Vohra shared hands-on experience in identifying product-market fit (PMF) danger signals with investors from Iconiq and Sapphire Ventures.

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Oct 23

At Superhuman, Vohra introduced the "disappointment survey" as a PMF measurement method, asking active users: if you could no longer use the product, would you be very disappointed, somewhat disappointed, or not disappointed.

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Oct 23

Vohra's 40% rule targets "active users," not all registered users.

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Sep 27

Superhuman Go comes from the team of Superhuman founder Rahul Vohra.

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Sep 11

The 40% rule proposed by Sean Ellis is used to quantify PMF: if more than 40% of users say they would be very disappointed if they could no longer use the product, the product has preliminarily achieved PMF.

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All Facts (5)

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