challenge(s) / method(s) / dream(s) / dilemma(s) / quote(s) / vision(s)

• The product of thinking has novelty or value, either for the thinker or his/her culture.
• The thinking is unconventional, in the sense that it requires modification or even rejection of previously accepted ideas.
• The thinking requires high motivation and persistence, taking place over a considerable time span (continuously or intermittently) or at high intensity.
• The problem as initially posed was vague and ill-defined, so that part of the task was to reformulate the problem itself.

Newell & Shaw (1962), from R.L. Glass Software Creativity 2.0