Apocalypse soon
Abstract
Based upon a simple vacuum Lagrangian, comprising cosmological and quadratic scalar field terms, a cosmological model is presented whose history is indistinguishable from that of an innocuous low-density cold dark matter (CDM) universe, but whose future is very much shorter. For sensible values of the deceleration parameter (0<q0<1), its age is greater than 85% of the Hubble time, thus resolving the current version of the age crisis, which appears (appeared) to be that t0 ~ H0 while q0 is significantly positive.
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