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Purpose and benefits

Thomas Edison (1847–1931) is credited with the invention of the phonograph and the electric light bulb. When asked about his numerous experimental failures, he is often quoted as saying: “I have not failed 700 times. I have not failed once. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work”. Whether this is apocryphal or not, it nonetheless conveys the message that “failure” is not a fact, it’s just a matter of perspective!

More recently, Edward de Bono is quoted as saying “It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all”.