Although widely used and researched, Maslow’s hierarchy of needs lacks conclusive supporting evidence and the validity of the theory remains contested in academia.[10][11][12][13] One criticism of the original theory which has been revised into newer versions of the theory, was that the original hierarchy states that a lower level must be completely satisfied and fulfilled before moving onto a higher pursuit; there is evidence to suggest that levels continuously overlap each other.[3]
Hence the “pyramid” model of “the bottom layer must be solid before work can start on the next layer up” is…probably not science.