A technique for focusing and optimally allocating effort. The 60 Choose the single-most important goal in life and dedicate 60% of effort to accomplishing that goal. Once it is completed, re-examin...

Let's have three abstraction layers: nature, middle, and human. The Human layer is designed for humans to effortlessly engage. The buttons on a dishwasher, the knobs on a stove. A keyboard. Paper wit...