One of the most exciting events at SXSW last week was the literary salon People of Letters, a Texas transplant of the Australian literary salon Women of Letters, held on Tuesday, March 12th in Austin. The panel of guests/presenters included John Sayles, Buck 65, Jenny Owen Youngs, Kim Boekbinder, Neil Gaiman, and Amanda Palmer.  Each read a hand-written letter to “The Thing I Wish I’d Written.” John’s letter, in the words of the Austin Chronicle’s Richard Whittaker, “ruminat[