38 ms·

Please do explain dark energy, given that all of physics is known and in the can? Nothing is ever cut and dry, or proved - just commonly accepted and proved wi

Please do explain dark energy, given that all of physics is known and in the can? Nothing is ever cut and dry, or proved - just commonly accepted and proved within our current paradigm - there's plenty to suggest that we've got the nature of reality fundamentally wrong.

pdonis 12y ago
> there's plenty to suggest that we've got the nature of reality fundamentally wrong How does dark energy show that? It's either a cosmological constant, or a quantum field with a particular equation of state. Both possibilities are covered by our current theories. Also, both possibilities obey local energy and momentum conservation, so even when we discover exactly what kind of stuff dark energy is and why its density is what it is, those conservation laws won't change. We certainly don't know everything, but we do know some things.