The awesome/awful nature of the "sometimes".* Sometimes wave/sometimes particle.* Sometimes skepticism/sometimes belief.* To be perfectly consistent requires perfect inconsistency, perfectly applied, etc... I always felt that was sort of the point of Schr*dinger, Heisenberg, Feynman; mathematical methodologies for working with awkwardness and turning it into a variable, itself an awkward thing but a bucket nonetheless to carry values, where the permeability of the bucket itself and its shape and size are not so different than holding a wisp of wind with a song.