Complete the summary below using the list of words, A-G.
Write the correct letter A-G in the blanks.
List of words
A invention B goals C compromise D mistakes
E luck F inspiration G experiments
The origins of creative behaviour
The traditional view of scientific discovery is that breakthroughs happen when a single great mind has sudden 37 . Although this can occur, it is not often the case. Advances are more likely to be the result of a longer process. In some cases, this process involves 38 , such as Nicholson’s theory about proto-elements. In others, simple necessity may provoke innovation, as with Westrope’s decision to modify the position of his riding stirrups. There is also often an element of 39 , for example, the coincidence of ideas that led to the invention of the Post-It note. With both the Law of Natural Selection and the Law of Effect, there may be no clear 40 involved, but merely a process of variation and selection.