Travels

Blogging will be reduced in coming days as I travel to Las Vegas tomorrow for a lecture at UNLV on the evening of April 17. Readers in the Las Vegas area are cordially invited to attend. After a brief return to Cambridge, I am on the road again next week, to Madison, WI, and Chicago, and then the following week to Washington, DC, Stanford, and finally UCSD. I will try to keep up the blog while traveling, but output will undoubtedly be reduced.