Reality...What is that??

Now Quamtum Theory and all such theores link to metaphysics and other fascinating concepts.
What is Reality ? It is a very intresting thought and subject to constant speculation.

Now when a particle explodes into 2 same mass particles , By laws of physics both should have equal velocity opp to each other. If they have spin , it should be equal and opposite. There is a device called Polariser , that orients the given light beam in a particular direction . A single photon might pass through it or it might not , with say equal probability . Now when a particle explodes into 2 photons in space , the 2 photons might be seprated by millions of miles . When one of this pair of photons is passed through a polariser , it may pass or it may not . Say it does .

But what about the second one . It also may pass or may not . But the astounding fact is that it does too always. That is both the photons show same behaviour with similar polariser even
though seprated by huge distance.

Quantum Theory predicts such phenomena and it is experimentally verified.
It says that all possible worlds are waves and they overlap each other. We cannot say anything about the state of a sub-atomic particle before observation .Only when the observation is made , do they seprate into distinct REALITY . Thus if we consider a sub-atomic particle it might be moving in 1 direction or other. Both worlds overlap . Only when we observe the system do we see which direction the movement is in. Only then does a reality materialises . Also the chance of a particular world becoming reality depends on PROBABILITY.

So is reality a concept appearing by our own observation . Appears to be so!!

This view of overlapping universe , only one being realized and others failed was given by Copenhangen. Another view of the reality , was given by Everest-DeWitt. It was used to explain Schrodinger's Cat Paradox much better.

Let's say a nuclei has a equal chance of decaying and not-decaying in 1 second.It is connected to hammer over a sealed box in which a cat is kept . If the nuclei decays , the hammer falls and capt is dead or if it doesnt the cat is alive . The expirement is turned on and switched off at 1s. What happened to Cat? We cant say . It is either dead or alive. Copenhangen view says that it is in a dead-alive state until a person observes it. There are various logical flaws in it . So according to Everest-DeWitt each of the 2 outcome happens in 2 different worlds . As soon as atom decays the world is split into 2 , one with each possible outcome.

Thus this theory says that universe is continiously splitting into stupendous number of universe every second and all possible outcomes are being realized somewhere. And that each of this universe combines to form a superspace.Thus there maybe some universe in which world war 3 has occured and no life is present . Some in which no world -war has occured and there is peace.