What was the key factor in Thomas Edison's success with the light bulb?

The key factor in Thomas Edison's success with the light bulb was his methodical approach to experimentation and iteration. He conducted thousands of tests to find the right materials for the filament, ultimately discovering that carbonized bamboo could last over 1,200 hours. Edison's ability to commercialize the invention, coupled with his understanding of the business side of innovation, allowed him to create a viable electrical lighting system that transformed society. His persistence and systematic approach to problem-solving were crucial in turning the light bulb from an idea into a practical and widely adopted technology.