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    Is wave-function collapse a REAL incident

    Scientists/Physicists/Truth-seekers, I am looking for answers to some questions, which I confess are issues of gobbledygook debates. But this time I want serious and simple answers. So no debates please. My questions are as under:- Is wave-function collapse a REAL incident or just a...
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    Is retro-causality a science fact?

    The "delayed choice" double-slit experiment seem to suggest that a measurement done, in the present, is able to change the past (history) of a particle. Does it imply that a cause arising in the future can change the past? If not what else does it mean? In our common sense view of causality...
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    What does Quantum entanglement tell about Causality?

    Entangled particles seem to have 'causal impact' on each other 'instantly' violating the allowed speed-limit of causal influence i.e. 'c'. When one of the entangled particles is measured it has an impact on the other instantly. These two events (i.e. 1. the measurement of the first particle and...
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    How does QFT address the problem of Locality in Quantum Entanglement?

    Quantum Entanglement allows spatially separated entangled particles to have impact on each other instantly (overcoming the allowed speed-limit of causal influence which is 'c'). How does Quantum Field Theory address this problem (protecting causality and chronology)?
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    If gravity is not a force, why does it need to be carried by Gravitons?

    According to General Relativity, gravity is not a force. It arises from the curvature of space-time due to presence of matter. Matter curves space-time in a way that the paths of things appear to be bent giving rise to th effects of gravitiation. But if gravity is not a force, why do we need...
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    What gave rise to cosmic inflation of the early Universe?

    What gave rise to cosmic inflation of the early Universe?
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    Why does General Relativity break-down at Plank Temperature?

    Why does General Relativity break-down at Plank Temperature?
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    How can something have both a constant speed and a precise location?

    How can something that moves at a constant speed for all reference frames have a specific location? Suppose two observers Alice and Bob are in motion with respect to each other so that they do not have a common inertial frame. But when both of them measure the speed of a photon, they find it...
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    Speed Limit of causal influence

    Theory of relativity restricts the speed of causal influences to the speed of light. But is it a proven science fact or merely a presumption? Could it be proven wrong by observations? Or may be there are already observations (such as the quantum -"spooky action at a distance") that are contrary...
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    I can't understand time dilation in absence of absolute motion.

    According to theory of relativity there is no absolute standard of rest. Now, if Alice and Bob are two observers floating in space, so that Alice thinks that she is at rest and Bob is moving away from her at a speed comparable to that of light and Bob thinks that he is at rest and Alice is...
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    Does empty space move? What are the laws that govern its motion?

    Does empty space move? What are the laws that govern its motion? The big-bang set the universe expanding. But universe did not consist of matter at that time. So, what started expanding! Empty space - I suppose. But do the laws of motion govern the motion of empty space as well? Don't we need...
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