Universe expands and contracts in an endless cycle from "summary" of Endless Universe by Paul J. Steinhardt,Neil Turok
The notion of a universe that expands and contracts in an endless cycle is a radical departure from the conventional wisdom in cosmology. Rather than envisioning the universe as a static entity, this model suggests a dynamic and ever-changing reality. According to this view, the universe undergoes periods of expansion followed by contraction, with each phase giving rise to the next in an unending loop. At the heart of this concept is the idea that the universe operates on a cyclical time scale, where the end of one cycle is the beginning of the next. This cyclical nature challenges our traditional understanding of time as a linear progression from past to future. Instead, time becomes a loop, where the future is connected to the past in a continuous cycle of creation and destruction. I...
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