So I, and my husband Michael Maslin , spent an evening with some friends the other night. Andy Borowitz and Olivia Gentile kindly fed and entertained us in their new home in Copake.  Susan Orlean and husband John Gillespie were there, too. We talked about lots of stuff, but what got the most heated was the subject of Twitter.  Why does this bring out such emotion in people?  Susan twitters, and so do I  (http://twitter.com/lizadonnelly).  Now, after our evening that night, do Andy and Olivia!!  Follow us.  I think it’s fun.