Glancer Posted August 3, 2022 Share Posted August 3, 2022 On 8/1/2022 at 8:23 PM, MigL said: usually, what one does is set gravitational potential energy as negative, and since it somewhat matches the magnitude of the intrinsic energy of the universe, we can say the universe is net zero energy. This is the 'universe from nothing' pitched by L Krauss. See here Zero-energy universe - Wikipedia Whether a property can be positive or negative, or simply an 'accounting' trick, or whether it even makes sense to consider energy on a global scale, is for people with better minds than mine to consider. It sounds like something that wouldn't happen naturally or by accident. Sounds like something that would take some preparation to set up. Yet regardless of how you feel about deities creating universes, it would seem that the more important thing to figure out is: what is spacetime made of? ...and can I test a small piece of it in the lab? Link to comment Share on other sites More sharing options...
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