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> If the universe has only a single particle, is time even possible? space is constantly expanding. particles have energy. energy decays. eventually into ph
by akira2501 2y ago
> If the universe has only a single particle, is time even possible?
space is constantly expanding. particles have energy. energy decays. eventually into photos. colors shift red due to increasing wavelength and decreasing energy.
- datavirtue 2y agoWe don't know if space is expanding. The models and observations appear to support expansion. This was just a thought experiment with a theoretical single partical in a universe of unknown size to demonstrate that the universe changes in non-obvious ways as you add energy/matter.