Talk:Dark energy/FAQ

Below are answers to frequently asked questions about the corresponding page Dark energy. They address concerns, questions, and misconceptions which have repeatedly arisen on the talk page. Please update this material when needed.

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Dark energy

The total amount of dark energy increases as space expands. Doesn't that violate conservation of energy?

Conservation of energy is not well-defined in curved spacetime, since the stress-energy tensor does not transform cleanly under change of coordinates.^{[FAQ 1]}

References

1. ^ Michael Weiss; John Baez (2017). "Is Energy Conserved in General Relativity?". math.ucr.edu. Retrieved 16 December 2021.

The section 'Evidence of existence' lists as one of the bullet points the 'theoretical need' for another type of energy given a flat universe. Basically its saying that without Dark energy our math doesn't work. That may be true but since when is that evidence of existence? It is a clue at most. 2A02:A44A:1378:1:F590:F6F0:A753:FA0 (talk) 09:22, 24 October 2024 (UTC)Stijn de Witt[reply]

[1] Michael Weiss; John Baez (2017). "Is Energy Conserved in General Relativity?". math.ucr.edu. Retrieved 16 December 2021.

[FAQ 1]