"The whole goal of physics is to explain what we observe. For centuries, physicists believed that observations yielded faithful representations of what is out there. But when they began to study the subatomic realm, they found that observation often interferes with what is being observed―that the act of seeing changes what we see. The same is true of cosmology: our view of the universe is inevitably distorted by observation bias. And so whether...

"At this very moment, we are moving through space at 130 miles per second, and yet we don't notice at all. Nothing slips and falls off the kitchen table as the Earth spins, and our bodies aren't catapulted against random buildings and trees by the planet orbiting the Sun. We, and everything around us, move at the same rate, so we simply don't notice the force that propels us through space. Nor do we notice the strangest fact of all, that we and everything...