Geometry and Destiny
The recognition that the cosmological constantmay be non-zero forces us to re-evaluate standardnotions about the connection between geometry and thefate of our Universe. An open Universe can recollapse, and a closed Universe can expand forever. As acorollary, we point out that there is no set ofcosmological observations we can perform that willunambiguously allow us to determine what the ultimatedestiny of the Universe will be.
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