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## Main Question or Discussion Point

I've read in a couple books (e.g. in

**Lee Smolin's***three roads to quantum gravity*) about the possible union of LQG and string theory. In other words, that string theory and LQG can possibly be reformulated into a single TOE. i've been unable to find anything more on this idea through google and was wondering if anyone knew of a few papers/books outlining progress on this topic.