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6 Future Directions

The key question one should ask at this stage is: “Where can we go from here?” Apart from continuing with the analysis of the issues described in the previous section, there are additional interesting routes, both theoretical and experimental, worth of future exploration. In particular, the following topics come to mind:

Some work has already been done dealing with these topics in the context of analogue gravity. Let us now expand on these issues a little.


 6.1 Back reaction
 6.2 Equivalence principle
 6.3 Emergent gravity
 6.4 Quantum gravity - phenomenology
 6.5 Quantum gravity - fundamental models
 6.6 Going further

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