Once I showed the movie Gattaca to some friends who had never seen it. All of us had comments to make about it and every time anyone talked I paused the movie so people could make their observations, ask their questions, etc.

A bit later after several pauses my wife said "we've been watching this movie for 45 minutes and we're only 10 minutes into it."

I can't pause. The absence of sound makes it too quiet to enjoy researching.