Our major candidates for quantum gravity are as you know String Theory and Loop Quantum Gravity.(adsbygoogle = window.adsbygoogle || []).push({});

Loop Quantum Gravity is about the spacetime curvature as a priori.

String Theory is about the Flat Spacetime as a priori (although I'm not sure if the 6 compactified dimensions are considered Flat Spacetimes).

Personally. I don't like both of them. LQG will rise and fall depending if the hunch is right that spacetime is really curved. And String Theory kinda contrived, and the non-perturbative version AsD/CFT doesn't even describe our universe due to the negative curvature.

Does anyone know of a web or papers that summarize in not so technical way the other approaches and their strengths and weaknesses? Or maybe if you know them, just give a brief assessements like their strengths and weaknesses based on your opinions. Thanks.

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# Other Approaches to Quantum Gravity

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