this post was submitted on 13 Mar 2025
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[–] surph_ninja@lemmy.world 1 points 3 months ago (1 children)

If space is always expanding, I’d really like to know if a time traveler would experience issues existing in a universe where the space between atoms is different from the one they left.

[–] MonkderVierte@lemmy.ml 1 points 3 months ago

They are not, that would require changes in the strong force.