- #1

marcus

Science Advisor

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Lubos Motl (at Harvard's Jefferson Phys. Lab.)

this paper is pure gold for what it does on the side

quite apart from what you might expect from the title,

which sounds narrowly focused on a specialized technical issue.

what Motl gives on the side is a *critical* overview of LQG

that cuts thru the underbrush and distinguishes a short list of impressive results---you could say one impressive result

Motl recognizes the landmark importance of Olaf Dreyer's

2002 paper, which seems to have put LQG on a new footing.

Dreyer's paper is less than 4 pages long and has

potentially far-reaching effects on quantum gravity, which

Motl provides perspective on. Here's Dreyer's 4 page paper:

http://www.arxiv.org/abs/gr-qc/0211076