[Although it’s strongly debated](https://phys.org/news/2012-04-physicists-abolish-fourth-dimension-space.amp), those interested in [general relativity](https://en.wikipedia.org/wiki/General_relativity) consider time as the 4th dimension. And since [time can bend](https://futurism.com/time-travel-bend-time), the *curvature of time* is the 5th dimension.
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