Curves of a feather

I have found that these commonly found curves have quite a bit in common.

A) The Gartner Hype Cycle was first described in 1995 by the firm Gartner to represent the maturity, adoption, and social application of innovative technologies.

B) The Dunning Kruger effect is a cognitive bias or psychological phenomenon of illusory superiority. It was first described in Kruger and Dunning's 1999 study "Unskilled and Unaware of It: How Difficulties in Recognizing One's Own Incompetence Lead to Inflated Self-Assessments". It describes the cognitive bias in which people with low competence at a task overestimate their ability.

C) The action potential is a phenomenon in physiology and occurs when the membrane potential of a specific cell location rapidly rises (resulting in a depolarization through inward flow of sodium ions through voltage-gated sodium channels), and falls (hyperpolarisation and outward current of potassium ions) when the polarity of the plasma membrane reversed and the voltage-gated sodium channels all closed.

D) The uncanny valley was first described in 1970 by robotics professor Masahiro Mori. According to him, the emotional reaction of some observers to a robot becomes more and more positive as the robot's appearance becomes more human-like, before it reaches a point where the reaction turns into strong disgust. However, once the robot's appearance becomes less and less distinguishable from a human, the emotional response becomes positive again.

The Gartner Hype Cycle and the Dunning Kruger effect are nearly identical, and even use nearly identical descriptors (i.e. "valley of dispair" vs. "trough of disillusionment"). The biggest difference may be that the plateaus reach different levels.

The uncanny valley appears to be a 180 degrees rotated version of the Gartner Hype cycle.

Of course, there is no causation between these curves.