The Big Bang was able to ‘manufacture’ two different futures

The fact that time flows in only one direction, from the past to the future, is one of the greatest mysteries in Physics. In our everyday life, things and people get old, not the other way around, and eggs get fried, but no one has ever seen a fried egg turn back into a raw egg. So there is an ‘arrow of time’. And that arrow always points in the same direction. However, in the formulas and equations that describe the fundamental laws of Nature, it is possible to reverse the direction of time and perform calculations without major problems. All these laws (except one that dictates how the disintegration of fundamental particles should be) work … See More

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