“If you are not making mistakes, you’re not taking enough risks,” Debbie Millman counseled. “Make New Mistakes. Make glorious, amazing mistakes. Make mistakes nobody’s ever made before,” Neil Gaiman advised young creators. In Intuition Pumps And Other Tools for Thinking (public library), the inimitable Daniel Dennett, one of our greatest living philosophers, offers a set of thinking tools — “handy prosthetic imagination-extenders and focus holders” — that allow us to “think reliably and even gracefully about really hard questions” — to enhance your cognitive toolkit. He calls these tools “intuition pumps” — thought experiments designed to stir “a heartfelt, table-thumping intuition” (which we know is a pillar of even the most “rational” of science) about the question at hand, a kind of persuasion tool the reverse-engineering of which enables us to think better about thinking itself.