Important piece of the overall characterization of intrinsic motivation states is that optimal challenge is central to intrinsic motivation. That is, people are intrinsically motivated to take on optimal challenges, for those are the activities that are most interesting, facilitate competence, and promote development.
Intrinsic motivation involves doing an optimally challenging activity that is interesting, is energized by the basic psychological needs for competence, autonomy, and relatedness, and does not require a contingent outcome that is separate from the activity itself.
Incredible @chbartist ...!!!