Please post suggestions for what could turn out to be "Most Influential Paper" that you see between now and June. We just had a 1st quarter 2006 M.I.P. forecast poll and 11 people responded by indicated which of 6 papers they predicted to be the most valuable for future research. Those were 6 that appeared roughly in the first 90 days of the year. It was fun (I thought) and interesting to see different people's guesses. Sometimes this helps form one's own ideas. So I would like to do it again, with other members' nominations. selfAdjoint just suggested this one http://arxiv.org/abs/gr-qc/0604044 Graviton propagator in loop quantum gravity Eugenio Bianchi, Leonardo Modesto, Carlo Rovelli, Simone Speziale 41 pages, 6 figures "We compute some components of the graviton propagator in loop quantum gravity, using the spinfoam formalism, up to some second order terms in the expansion parameter." So please post on this thread whatever preprint you see come out roughly in the second 90 days (April thru June---approx. or thereabouts) which you think is profoundly innovative and likely to start many research hares. non-string QG and related stuff. Come end June I will pick a half dozen or so and make a poll.