That said, I've had it running for around and hour and have found it interesting for no other reason than understanding how filibusters actually work. From what I can tell, he has just been spending time reading articles critical of drone strikes or reading other documents while providing commentary on them as he goes.
He's even been taking time to eat a snack which provides comedic pauses in the listening experiences.
Rand also gets small breaks from others who come forward to ask questions - most of which seem to be staged to help him cover additional points, reiterate his already made points, or just generally use up more clock.
Based on the view behind him, it appears that all other senators need not be present while he speaks. Is that true and has this always been the case? I'd imagine that the tactic might be more compelling and useful if everyone had to sit there and listen.