I tend to watch him at the normal 1x speed simply because he speeds up and slows down a lot. I'm certainly not saying he's a bad speaker... there are times when he's speaking >200 WPM, times when he pauses for several seconds, and times when he's explaining the Greek language to us. Yet, even other times he's visually teaching: maps on the board, standing in the doorway, or presenting two markers. This is definitely a full audio-visual lecture and not an audiobook. I'm lucky my factory-like workplace allows me to listen to him and (safely) sneak a peak at what he's visually performing. It's like a very educational movie. Thanks for the content, Dr. Rosenfeld.