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-as of [9 APRIL 2024]–
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-in ‘physics’, spacetime is any ‘mathematical model’ that combines ‘space’ + ‘time’ into a ‘single inter-woven continuum’-
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(since ‘300 BCE’, the ‘spacetime’ of our ‘universe’ has historically been interpreted from a ‘euclidean space perspective’, which regards ‘space’ as consisting of ‘3 dimensions’, and ‘time’ as consisting of 1 dimension (the ‘4th dimension’))
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(by combining ‘space’ + ‘time’ into a single ‘manifold’ (called ‘minkowski space’) in ‘1908’, physicists have significantly simplified a large number of ‘physical theories’, as well as described in a more uniform way the workings of the ‘universe’ at both the ‘super-galactic’ + ‘sub-atomic’ levels)
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