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The universe is shifting from an orderly state to a disorderly state. Things are not reversible and the Arrow of Time points one way. More in depth below. NEXT: Bullet trains to the stars using warp drives: https://www.youtube.com/watch?v=iiUr9VX_hYk Time Travel playlist; it's more real than you think: https://www.youtube.com/playlist?list=PLke8o-yBwNzHOv_AAQcWVjFIh25yPNsrF The arrow of time, or time's arrow, is a concept developed in 1927 by the British astronomer Arthur Eddington involving the "one-way direction" or "asymmetry" of time. This direction, which can be determined, according to Eddington, by studying the organization of atoms, molecules and bodies, might be drawn upon a four-dimensional relativistic map of the world ("a solid block of paper"). Eddington then gives three points to note about this arrow: It is vividly recognized by consciousness. It is equally insisted on by our reasoning faculty, which tells us that a reversal of the arrow would render the external world nonsensical. It makes no appearance in physical science except in the study of organization of a number of individuals. Physical processes at the microscopic level are believed to be either entirely or mostly time-symmetric: if the direction of time were to reverse, the theoretical statements that describe them would remain true. Yet at the macroscopic level it often appears that this is not the case: there is an obvious direction (or flow) of time. The Arrow of Time: Why does time move one way? Stay up to date via Twitter: https://twitter.com/stargazer_edu Purely for educational purposes. stargazer. https://www.youtube.com/c/stargazer17