A wormhole is the one way, in the context of general relativity, that immediate transport between two disparate, disconnected events in spacetime can occur. These “bridges” are mathematical curiosities only at this point in time; no physical wormholes have ever been found to exist or have ever been created, but if one were discovered it could immediately test general relativity’s predictions, as well as any alternative competitors. (Credit: vchalup / Adobe Stock)

Relativity and the physics of immortality

Nothing lives forever, at least, not in the physical Universe. But relativity allows us to get closer than ever, from one perspective.

Ethan Siegel
Starts With A Bang!
11 min readOct 25, 2023

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From your own experiential perspective, the laws of physics are stacked against you if you ever hope to achieve immortality. From a thermodynamic perspective, every…

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Ethan Siegel
Starts With A Bang!

The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, science communicator & NASA columnist.