Over the last few weeks I have been talking to people about how to solve problems. They were  non-scientists but intelligent none the less and one general thread seemed to stand out. If the methods they were using in an attempt to solve a problem didn't work - they tried it again and again ... and you guessed it, again. Little or no thought was put into changing what they were doing. It reminded me of something I heard years ago. It was an old saying and it goes like so: 'One definition of insanity is doing the same thing over and over again and expecting different results.'