Annalee Newitz, "THE FUTURE OF ANOTHER TIMELINE" w/ Sean Carroll

In a modern-day United States just a step away from our own, time travel is possible – in fact, it has existed for as long as humanity itself. Jumping into the past is simple, and scientists say that altering the timeline is almost impossible. But Tess, an idealistic geology professor, has figured out how to use time travel to try to undo a horrible injustice in the past whose effects are still being felt in her own time. Meanwhile, in 1992, teenage riot grrl Beth’s ordinary life is about to become a tangle of toxic friendship and murder. And across the timeline, a secret war is brewing as a group of men attempt to destroy time travel. If they succeed, only a small elite will have the power to shape past, present, and future. Tess and Beth are part of this hidden war that stretches back millions of years. But with the help of unlikely allies from times past and times yet to come, they may be able to save each other—and build a different future. The Future of Another Timeline author Annalee Newitz is in conversation with Sean Carroll, Research Professor of theoretical physics at the California Institute of Technology.