clowns have long had an intuition of the fact.
This seems to me the solution of the little riddle propounded by Pascal in one passage of his Thoughts: "Two faces that are alike, although neither of them excites laughter by itself, make us laugh when together, on account of their likeness." It might just as well be said: "The gestures of a public speaker, no one of which is laughable by itself, excite laughter by their repetition." The truth is that a really living life should never repeat itself. Wherever there is repetition or complete similarity, we always suspect some mechanism at work behind the living. Analyse the impression you get from two faces that are too much alike, and you will find that you are thinking of two copies cast in the same mould, or two impressions of the same seal, or two reproductions of the same negative,—in a word, of some manufacturing process or other. This deflection of life towards the mechanical is here the real cause of laughter.
And laughter will be more pronounced still, if we find on the stage not merely two characters, as in the example from Pascal, but several,