Hallie Siegel writes: Joel Gibbard tells us about how was able to create a functional prototype for a robotic prosthetic hand for just $1000. Usually, prosthetic hands cost between $11,000-$110,000 making them too expensive more many amputees to afford, especially in developing countries. Joel uses 3d printing and some smart design decisions to keep costs down.
If a subordinate asks you a pertinent question, look at him as if he had
lost his senses. When he looks down, paraphrase the question back at him.