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Imagine studying really hard for a final exam in biology. You spend hours down in the library, reading the textbook, pouring over your notes, doing practice questions, only to show up on test day to find out, hey, this isn't

a bio test, it's a history exam.

That's kind of what it's like when a product designer builds something that it turns out people don't actually want.

The business has invested tons of time and money into a total dud.

It can be a company's worst nightmare. Well, today's founder, Dennis Mang, says he has a way to stop those

nightmares, his startup user interviews, a system for testing what you're building with actual customers, and he's in the

pitchroom today to see if the investors want what he's selling.

He's hoping to raise $4 million.

From Gimlet, this is the pitch. I'm Josh Muccio. Today's

investors are Phil Naidill. As a serial entrepreneur, Phil built companies that

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