Edward Murphy is a Captain Engineer at Edwards Air Force Base, USA. Once, he and his boss, Major Staple, participated in an experiment in which 16 rocket accelerometers were suspended above the subjects. There were two ways to attach the accelerometers to the brackets, and it is unbelievable that someone methodically installed all 16 accelerometers in the wrong positions. So Murphy concluded: If there are two or more ways to do something, and choosing one of them will lead to disaster, someone must make that choice. A simple understanding is: If there is a possibility that something could go wrong, no matter how small the possibility of it going bad,…