Of course we can be calm and thoughtless for a while. It's called meditation and it helps to slow down a bit. I'm rather an introverted person so I can really appreciate silence. I also have my own addictions, of course. While I think I get Your point, I think it's oversimplified. Or maybe that's what You wanted to claim regarding most of the people, then I might agree. Still, we don't get to know most of the people well (except for appearances) so isn't taking them for granted too bold?
I still like Your post though, you've made a strong point.