When the Head Doesn't Know

The bottom says brave new world distracts us from bringing out our best. It tries to bring out our worst. That's why you got to turn it off. Even if you don't believe it, even if you see all the lies and all the techniques, if you continue watching it or listening to it,. You're using up so much of your time and energy. Instead of bringing out your best in yourself and in your real life, instead you're wasting all that time and energy, just listening to that garbage. I'm not exaggerating when I say that. I'm very, very direct about that. When the head doesn't know, I'm kidding. Please explain the meaning