In John's day, those reading today's chapter understood "Babylon the Great" to be the Roman Empire. The Romans were known for their creatively tortuous execution methods, including the tying of a giant millstone to the neck of a victim and tossing the millstone and victim into the sea or a deep river to drown. A chapter-a-day podcast from Revelation 18. The text version may be found and shared at tomvanderwell.com.