James Dyson spent years developing his bagless vacuum cleaner, building over 5,000 prototypes that failed. Investors and manufacturers doubted his design, calling it impractical. Dyson persevered, refining his technology until it worked perfectly. The turning point came when he launched Dyson vacuums himself, eventually becoming a global household name. His story shows that persistence, patience, and iteration are key ingredients in turning repeated failure into fortune.
