Which failed product design later influenced a revolutionary invention that changed its industry?

Product design is a journey of trial and error, but some failures teach us more than successes. This poll tests your knowledge of famous product design missteps that actually led to important lessons and innovations in their industries. These examples demonstrate how failure often becomes the foundation for future success in the world of invention and discovery.

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The Apple Newton MessagePad, which failed commercially but pioneered handwriting recognition technology that influenced the development of modern touchscreen interfaces
The Ford Edsel, which despite its commercial failure, introduced the first automotive cruise control system that became standard in future vehicles
Sony's Betamax, which failed in the market but later became the foundation for digital video compression technology used in modern streaming services
The Segway personal transporter, which commercially underperformed but pioneered self-balancing technology later adopted in successful drone stabilization systems