I noticed that too, but thought it might have to do with notes, or ideas he had stored on his phone in case he became flustered. I’ve never, nor will ever be on The Late Show, but I assume its nerve-raking as hell.

I think the lack of “tear-away” (for want of a better term) is a problem. If you are on a natural surface and you put serious lateral force on the ground with your leg, real turf will tear away, leaving a gouge.