A monumental work on the flow of time, from the universe’s creation to “now,” by the best-selling author of Physics for Future Presidents.
“Now” is a simple concept—you’re reading this sentence now. Yet a real definition of “now”...
Why do our headaches persist after we take a one-cent aspirin but disappear when we take a fifty-cent aspirin? Why do we splurge on a lavish meal but cut coupons to save twenty-five cents on a can of soup? When it comes to making decisions in our...