Why do I always get the feeling that quantum gravity reverses the normal
scientific process of discovery-theory? In other words, normally a new
unknown phenomenon is discovered, studied, measured and then theories are
developed to explain how it works and perhaps why.

  With quantum gravity the direction seems reversed: They have formed the
theory of a gravitational quantum *first*, and now they are really hard
trying to discover it somehow.

-- 
                                                          - Warp

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