Definition of insanity in Oxford dictionary:
nounDefinition of insanity by Einstein:
the state of being seriously mentally ill; madness; extreme foolishness or irrationality.
doing the same thing over and over again and expecting different results.To all the Boleh1and voter, if you have repeated 55 years of unlimited test and failure, you do not need to repeat the test again this time and I can ensure you the result will be the same. So, please change to other method, it may bring you to the next lever.