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All the indistinguishable photons illuminate the array of N slits, or grating, simultaneously. If only one photon propagates, at any given time, then that individual photon illuminates the whole array of N slits simultaneously.

 

F. J. Duarte

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When a photon comes down, it interacts with electrons throughout the glass, not just on the surface. The photon and electrons do some kind of dance, the net result of which is the same as if the photon hit only on the surface.

 

Richard Feynman

 

Suppose the reasoning centers of the brain can get their hands on the mechanisms that plop shapes into the array and that read their locations out of it. Those reasoning demons can exploit the geometry of the array as a surrogate for keeping certain logical constraints in mind. Wealth, like location on a line, is transitive: if A is richer than B, and B is richer than C, then A is richer than C. By using location in an image to symbolize wealth, the thinker takes advantage of the transitivity of location built into the array, and does not have to enter it into a chain of deductive steps. The problem becomes a matter of plop down and look up. It is a fine example of how the form of a mental representation determines what is easy or hard to think.

 

Steven Pinker

 

The Things to do are: the things that need doing, that you see need to be done, and that no one else seems to see need to be done. Then you will conceive your own way of doing that which needs to be done — that no one else has told you to do or how to do it. This will bring out the real you that often gets buried inside a character that has acquired a superficial array of behaviors induced or imposed by others on the individual.

 

Buckminster Fuller

 

If a little kid ever asks you just why the sky is blue, you look him or her right in the eye and say, "It's because of quantum effects involving Rayleigh scattering combined with a lack of violet photon receptors in our retinae."

 

Phil Plait

 

'"Yet, what is their violence compared to mine, which was to accept theirs, to make it mine, to wish it for myself, to intercept it, to utilize it, to force it upon myself, to know it, to premeditate it, to discern and assume its perils? But what was mine, willed and necessary for my defense, my toughness, my rigor, compared to the violence they underwent like a malediction, risen from an inner fire simultaneously with an outer light which sets them ablaze and illuminates us?"'

 

Jean Genet