This great talk is a pet peeve inducer, because after watching it you will start noticing how often the word "simple" is still used as a platitude in programming circles.
I.e., my code is simple--and that might make your usage complex.
Of course, things can evolve from the original implementation--especially if the code is maintained by a team. What was once 'simple' (from any perspective) can become terribly appendaged yet never renamed.
It's a great talk, but it's like nobody is allowed to say "simple" anymore without mentioning Rich Hickey.
See, I just did it and didn't have to mention Rich Hickey.
"Simple, like a block of uncarved wood."
Far worse is "pragmatic".