Can reality ever be known?
Share to twitterQuantum mechanics is a weird thing. It says that we can never really know all there is about reality. If we measure a particle, we can't know its exact momentum and position at the same time. If we know one, there has to be an uncertainty about another. There is a certain"fuzziness" to reality - an uncertainty that is inherent in the Universe.
In order to understand this theorem, let's set up our own simplified experiment. To do so, we will need quantum entangled coins and a friend on the other side of the Universe. Where you get your entangled coins is up to you. Let's get started.Let's say that you and your friend have two sets of entangled coins - a penny, a dime, and a quarter.
On the other hand, perhaps the hidden variable theory is wrong. In this case, the coins are both heads and tails until we measure them. At the point of measurement, the coins choose which side they will pick. This is the prediction of quantum mechanics.
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