Einstein kept saying for 30 years that physics couldn’t work this way—but it turned out that it does. Imagine two particles are created together and then separated. Now there’s no connection between them—no wire, no signal. You choose one particle. The moment you measure it, you instantly know the state of the other particle—even if it’s in another galaxy with no apparent connection. If you measure particle one, you immediately know the state of particle two. And if you measure particle two, you know the state of particle one. But there’s no visible link between them. So how is this information shared faster than the speed of light? This phenomenon is called quantum entanglement. Einstein believed deep down that there must be some hidden variables or hidden symmetries in nature that connect these particles—it’s just that we don’t know about them yet. He argued this for many years. However, the 2022 Nobel Prize in Physics was awarded for experiments that showed Einstein was wrong. There are no hidden variables—this is simply how nature works.