The history of science shows that theprogress of science has constantly beenhampered by the tyrannical influence ofcertain conceptions that finally came to beconsidered as dogma. The actual state of our knowledge isalways provisional and … there must be,beyond what is actually known, immensenew regions to discover. Two seemingly incompatible conceptionscan each represent an aspect of the truth… They may serve in turn to represent thefacts without ever entering into directconflict. Louis de Broglie (1892 –1987) [Wik17b]