> ## Content Index
> Fetch the complete content index at: https://www.cascadepbs.org/llms.txt
> Use this file to discover other available public pages before exploring further.

# Something Disturbing Happens When You Solve Einstein's Equations This Way
- URL: https://www.cascadepbs.org/show/pbs-space-time/episode/something-disturbing-happens-when-you-solve-einsteins-equations-this-way-kax8ef/
- Published: 2026-04-03T15:45:20.000Z
- Updated: 2026-04-03T16:00:15.000Z
- Description: Gödel found a time-travel solution in General Relativity, revealing spacetime can loop on itself.
- Author: Cascade PBS Staff
- Tags: PBS Space Time, Season 11, Episode 25, #ZZZ_Episode_3d91ab29-6a50-4dea-9a1f-46b8580fe283, #episode, #ZZZ_Show_ae70f836-13b6-4c9d-b61f-99f7b8bc29eb, #v1.16

Gödel discovered a solution to General Relativity that actually permits time travel — no exotic physics required. His "Gödel universe" reveals that spacetime itself can loop back on itself under certain conditions, blurring the line between past and future. This exposes a startling limitation: the theory offers no guarantee of a consistent cause and effect.