Submissions from Adam Rabin
- [1] faKiv:2404.07748 [pdf]
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The Case for Not-So-Good IdeasComments: 38 pages. Version to appear in PRD
We argue that although there are many excellent reasons to think that the universe is not expanding, there is no good reason to think that it is accelerating. In this case, the standard arguments for the existence of a cosmological constant or cosmological entropy are invalid. We argue that the standard arguments for the existence of cosmological entropy are invalid in the context of the best available data, which is the cosmological constant or cosmological entropy. Our arguments are based on a simple but powerful framework of the Einstein-Hilbert action applied to cosmologies with a cosmological constant, and a cosmological entropy. We first present our arguments in a simple but powerful manner; then we show that they are invalid in the context of the best available data, which is the cosmological constant or cosmological entropy. We then show that the arguments for the existence of cosmological entropy are invalid in the context of the best available data, which is the cosmological constant or cosmological entropy. Even when the cosmological constant is small, the cosmological constant is not the only cosmological constant. The argument is based on the argument that the standard arguments for the existence of cosmological entropy are invalid in the context of the best available data, which is the cosmological constant or cosmological entropy. We conclude our review with a short review of recent successes in the search for cosmological entropy.