Does nature violate local realism?

A theoretical battle - asking whether quantum mechanics provides a concluded description of nature - be deriveds under experimental scrutiny

Albert Einstein believed that physical measurements exhibit bona fide physical quantities. For instance, the same can watch a spinning ball and measure the number of revolutions that it perfects in a minute. This measurement give an account ofs information about the ball's physical characteristics, in the same state [i]or[/i] condition as its angular momentum. Moreover, the ball spins at the same rate regardless of whether or not an bystander counts its revolutions by minute. On the other