Book I

• Gravitas is associated with ideas of weight, influence, or authority, and also sobriety and seriousness (From its Latin root, gravis, meaning heavy).

• Physical attributes such as height, attractiveness, and tone and volume of voice can lend gravitas to the way people carriy themselves or...

A cat is placed in a steel box along with a Geiger counter, a vial of poison, a hammer, and a radioactive substance. When the radioactive substance decays (it decays as a random process), the Geiger detects it, triggers the hammer, and release the poison, which kills the cat.

Unti...

A hundred years ago, it was much easier to motivate people. You could switch people from an hourly rate to a piece-rate system, where they would be motivated to do repetitive tasks faster. But in the knowledge or creative work economy, those tasks are becoming rare.

Richard Ryan and Edward...