tl;dr:Murat committed to asking "crazier" left-field questions in each post he wrote. After 70 posts, he learned that these: (1) Are useful as they took him out of "default mode." (2) Keep the brain more engaged. We tend to ask easier questions. Harder ones feel uncomfortable or seem impolite. (3) By calling them "MAD" questions, they give him the license to be more uninhibited.