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#126: Are we stuck in a time loop? Legal action against climate change; covid fifth wave; time loop are we stuck?

The world, the universe and us

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Can Time Travel Allow for Causal Loops?

Comella looks at research into something called causal loops. This is the kind of paradoxe that could happen if we were able to travel to the past and then mess with it. The researchers studied a very large set of theoretical universes, and they did find that some of them can allow for causal loops. Bu the laws of those same universes, which are all theoretical, would still forbid you from sending an actual message into the past.

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