After a very thought-provoking Computer Science Colloquium about Ask.com, I had a lunch meeting with NYU's Rob Fergus in Computer Science, with whom I have significant research overlap. He and I discussed image combination and recognition of information in images, fields in which both of us currently work (with very different angles).
In the afternoon, Louie Strigari (Irvine) gave a nice astro seminar on using very small objects, and dark-matter properties on small scales, to test the fundamental properties of the dark sector. He argued that current data on the latter are not constraining, but that the dwarf galaxies are potentially very interesting.
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