If you thought the answer was simple, try a Google search, which gives a dizzying array of definitions.
Most of us can correctly remember melodies and lyrics learned in childhood, even years after last having heard them.
Speaking of regularly spaced circles, I observed something similar in southern Utah from a helicopter in 2019 (see the photo at the top).
Or do some academics just feel sure they won’t get caught? Or that, if they do, it somehow doesn’t matter?
Researcher on identical twins hoped to prove that Genes Rule! But there were ethics slippages along the way.