This startup died in 2017, but its dream of in-ear computing is everywhere

Doppler Labs folded before it could revolutionize hearing. Then its ideas came to life one by one in Apple’s AirPods and their rivals.

Few elements of Silicon Valley’s culture are more cherished than its embrace of failure. Nobody looks askance at you for starting a company that doesn’t make it. Indeed, it’s widely regarded as a badge of honor, proving your willingness to make bold, risky bets and leaving you a smarter, more battle-tested veteran.