Prima Facie Questions in Quantum Gravity

  title={Prima Facie Questions in Quantum Gravity},
The long history ofthe study ofquantum gravity has thrown up a com plex web ofideasand approaches.Theaim ofthisarticleisto unravelthisweb a little by analysing som e ofthe prim a facie questionsthatcan be asked ofalm ost any approach to quantum gravity and whoseanswersassistin classifying thedi erent schem es. Particular em phasisis placed on (i)the role ofbackground conceptual and technicalstructure;(ii) the role ofspacetim e di eom orphism s;and (iii) the problem oftim e. 

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