Vienna was of course an obvious target for ottoman expansion against an enemy it had proven more powerful than. A large hub of culture and trade the reward and pillage would be astronomical not to mention the message it would send to the papacy and all of europe
Carl Jung visits Freud in Vienna to discuss his views on parapsychology. It's evident they have different beliefs on the topic. Freud feels they should not explore the paranormal, as it could discredit them, while Jung thinks they are limiting themselves by not exploring it.