But the circles-in-the-sky people have already rebutted this claim, saying they're really sure the circles that the dodecahedron would leave are simply not there.
Where can I read about this rebuttal?
I've only seen this in news reports; I don't think there is a primary source yet. Examples are http://sciencenow.sciencemag.org/cgi/content/full/2003/1008/3 http://www.nytimes.com/2003/10/09/science/09COSM.html?pagewanted=2&ei=5062&e... One of the reports (I don't recall which) said that Weeks et al have been in intense discussion with Cornish et al this week. Hey, it's an experimental science, what do you expect?...
The current evidence is all based on the absolute values of the various spherical harmonics; would there be any predictions about the actual vectors as well if the universe is actually a Poincare dodechedral space?
I do recall an article about some anisotropy in the WMAP autocorrelation data that indicated some preferred direction in the universe -- pointing towards Leo, I think. (Thomas?) But I have no idea how that would relate to the current (highly symmetric) manifold possibility. --Michael Kleber kleber@brandeis.edu