Hasn't thinking already become a hobby for most people, and most delegate their thinking to others?
Think: those in authority figures, for church or politics. Or science or chemistry. And especially in their own health, which should always remain part art. A few nerds on the internet, like us in hacker news, are still remaining open to question and apply our hard thinking to tough problems. But most people: they've resigned and bought the belief they are not qualified to think about hard problems.