Softbank founder Son Masayoshi striked gold with a similar method. He created a set of flash cards, drew 3 cards, and tried to conceive an invention from the withdrawn keywords. Having drawn "dictionary," "electric circuit," and "voice" IIRC, he ended up with an idea for an electronic dictionary that reads up the words. He hired his professor at Berkeley who was knowledgable in speech synthesizing for $50/hr. When the idea was realized as an invention, he filed the patent and sold it to Sharp, a Japanese electronic conglomerate. Having raised approx. $3 mil, he used that money to start Softbank. The rest is history.<p>Source: Recalling from biography I read years ago