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A stranger wearing his product
He ran down the Westside Highway all the time, looking to see whether anyone out there had a pair of ear hooks on their headphones. At 22 he was building the company on nights and weekends.
The first sighting came while he was working at LinkedIn. He had gone out for lunch with a friend, and a man walking down the street was wearing them. He stopped the man and took a photo.
The man was a customer with no tie to him, far from friends and family, and the first person he had ever seen wearing the product. He was floored by how real it was.
Why do earbuds fall out during a run?
Ear shapes vary widely, and a plain earbud rests in the bowl of the ear without anchoring to anything. Running adds repeated impact, and sweat reduces the friction that keeps it in place. Hooks and wings give the earbud a second point of contact on the outer ear. Manufacturers make earbuds in several tip sizes because one size cannot fit every ear canal.
Why does a stranger's purchase mean so much?
Friends and family often buy or praise a product out of loyalty, which makes their reaction hard to trust. Rob Fitzpatrick's 2013 book The Mom Test argues that people close to a founder give polite feedback that hides the truth. A stranger who spent their own money has no reason to be kind. The book became a standard reference among startup founders for exactly this reason.
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