From Eternity to HereBy: Sean Carroll Twenty years after Stephen Hawking's 9 million copy selling A Brief History of Time, pioneering theoretical physicist Sean Carroll takes our investigation into the nature of time to the next level. You can't unscramble an egg and you can't remember the future. But what if time doesn't (or didn't!) always go in the same direction? Carroll's paradigm shifting research suggests that other universes experience time running in the opposite