Does Maslow's original hierarchy of needs remain a valid motivational behavioural science theory, or is it redundant due to his and others' later revisions and developments in motivational psychology? Why has his original humanistic theory of psychological development defied all attempts to be noted for their later revisions and been described as "one of the most cognitively contagious ideas in the behavioural sciences."? Even though Maslow's original 1943 paper does not contain a single diagram, let alone a pyramid or triangle. Has the persistent phenomenon of presenting his original theory diagrammatically from the misnomer of a pyramid reinforced what otherwise may have been a milestone at the time but would now otherwise be a long-forgotten theory of motivational psychology? In considering the above, do we now have a situation where Maslow is predominantly remembered for the image of a pyramid rather than a profound scientific contribution to humanistic motivational psychology?