Incidentally, linguistics blogger Geoffrey Pullum (of <a href="http://languagelog.ldc.upenn.edu/">Language Log</a>) lives in Edinburgh but has been stuck in the Boston area due to the volcano and apparently has been giving impromptu talks at various Boston-area institutions over the last few days. So it's not just mathematicians.
]]>The difficulty, for the outsider, is determining which universities X are geographically reasonable to consider (say, easily day-trippable by train that runs frequently, in case a flight suddenly opens up). How many people not familiar with the area would instantly realize that Penn and Yale are in that set, but Cornell is not (after all, it's in New York State!)? Of course this is all research that can easily be done from the calm of one's office, but that's not the situation in which the question was asked, and this is basically a way to quickly get in touch with mathematicians based in or near New York City.
Also, Deane Yang quickly gave a list of appropriate universities -- but he is not in Javier's research area, and therefore probably not someone that Javier would have thought to ask.
I say don't worry. If the community has a problem with these sorts of questions that will become obvious. And in that case that would probably be because they are sufficiently common that it would make sense to set up another site for them.
]]>http://mathoverflow.net/questions/21666/anything-going-on-for-a-mathematician-stuck-at-new-york
I'm not worried that MO will become overloaded with this type of question, and so I don't think it's too problematic. On the other hand, we're not at present particularly well set up to handle that type of question.
Thoughts?
]]>