This started to become interesting to me in terms of audio because I thought I was hearing the t-sounds in many of his examples as he makes his points. Sometimes they're a bit soft, which may be all he's saying, but then I began to wonder if it's because he's old and his hearing isn't as good as he assumes, or it helps to have decent headphones (though I wasn't using amazing ones to listen). Particularly around the 3 minute mark with Adele and some of the others, I hear some of their t's. I close my eyes, rewind, and still hear. Am I just expecting there to be a t-sound and imagining it?