Physics should represent a reality in time and space, free from spooky actions at a distance.
Albert Einstein didn’t like quantum mechanics and the uncertainty they implied. He really wouldn’t like what scientists have done now: quantum teleportation. We’re not talking about the kind of teleporation from Star Trek. This is only sending data. And not over long distances, only about 3 meters. But its reliable (a first). This is proving that quantum mechanics can have practical applications, such as quantum computing.