This episode presents a speculative look at the far future of the universe and the potential for a “cosmic amnesia.” It explores how, as galaxies drift beyond visible reach due to cosmic expansion, future astronomers may lose access to the universe’s historical clues, including evidence of the Big Bang. Without observable galaxies, key discoveries like the universe’s expansion would become impossible to replicate. This leads to the unsettling idea that the universe’s true nature might fade from knowledge, leaving future civilizations to theorize within a limited and isolated cosmos. We suggest that, in such a scenario, scientific understanding could give way to mythology or folklore as explanations for cosmic existence.

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