Space-time is supposed to be one unity making time in a way equivalent to spacial dimensions. Of course in the metric for time has a different sign though.(adsbygoogle = window.adsbygoogle || []).push({});

But what if it's just a mathematical accident that space and time take very similar positions in physical equations?

What is the best evidence that time and space are somehow the same?

The point is, if they weren't, then time-travel and all similar ideas with past/future would be a senseless idea.

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# Evidence that space and time has equal footing?

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