velocity dispersions

Still trying to figure out exactly why turning fixing a value for galaxy clutser velocity dispersions has a different effect than letting it float and finding a the best-fit minimum value. Puzzling. Very puzzling.

Shanks (Durham) gave Observers' Lunch today on "Lensing and the CMB". Although I've always liked his maverik style and the questioning of fundamental idioms - e.g. is the search for the dark matter particle like the search for the neutrino (successful) or the EM ether (unsuccessful but then leading to SR)?? - I have trouble with the current lensing model than desperatly struggles to reproduce the CMB power spectrum. Fully admitting that there could be a number of different things going on with respects to foregrounds (SZ effect and
the like) which have to be brought under better control.

In non-astronomy news, Germany play Argentina today in Berlin for a place in the World Cup Semi-final. Does it really seem a week ago?