Compared with Tuesday, my Wednesday and Thursday (so far) have been pretty uneventful.
Got to Logan early, took the overnight flight to London, changed terminals, experienced the usual rude security staff at Heathrow, flew to Vienna, experienced the usual official-of-few-words at passport control. Took the express train and two metro trains to finally get to the hotel which is a stone's throw from both the metro stop and the conference venue.