Can you say “I’m done” when you get up from the dinner table? Can you say “Drive slow”? Can you use “like” to mean “such as”? Anyone who’s ever been scolded for “poor grammar” like this will be ...

These days, we’re all experts in the perils of time travel. Through extensive research in front of our TVs, we know that if we go back in time we should never step on a bug, never try to talk sense ...