ust an aside about "tools for thought," a burgeoning attention-sump in some circles. I seldom notice mention of the following: A walk. A shower. A good night's sleep. Introspection and reflection. I don't know that we understand "thought" well enough to design tools to improve it. But we do love our cleverness and the artifacts thereof. We can see those, and, more importantly, show them to others! We can talk about them, criticize them, modify them, endlessly.