obituaries, universes, spectrographs

[Just back from a few days of vacation.]

I attended an interesting and extremely interactive talk about the observability of universe–universe collisions by Tommy Levi (UBC). His calculations are approximate, but give a general idea about what would be observed. Interestingly, there is a cold spot in the WMAP map that could be what he predicts.

In the rest of the day I discussed next-generation spectroscopy projects with Adam Bolton (Utah) and worked on two obituaries for Sam Roweis.

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