On the subject of tent 1 being Dante's inferno I found this
"Each sin's punishment in Inferno is a contrapasso, a symbolic instance of poetic justice; for example, fortune-tellers have to walk forwards with their heads on backwards, unable to see what is ahead, because they tried, through forbidden means, to look ahead to the future in life"
floating head maybe?
sorry I can't quote who originally had the inferno idea on my phone.