# Gödel’s rotating universe

In 1949 Gödel found a solution of Einstein’s equations for a universe that turns as a whole and contains paths that return to their own past. It showed that general relativity alone does not forbid such loops, and he took this as a hint that time may not be what it seems.

Connects to:
- [Gödel](https://mapideas.org/i/godel)
- [Time and motion](https://mapideas.org/i/ti_relativity)
- [closed loops](https://mapideas.org/i/tr_loops)
- [Could time loop back?](https://mapideas.org/i/q_time_loop)

Sources:
- [Wikipedia: Gödel metric](https://en.wikipedia.org/wiki/G%C3%B6del_metric)
- [Wikipedia: Closed timelike curve](https://en.wikipedia.org/wiki/Closed_timelike_curve)

Source: https://mapideas.org/i/ti_godelmetric · open on the map: https://mapideas.org/#ti_godelmetric