Indefinite information processing in ever-expanding universes
作者： John D. Barrow , Sigbjørn Hervik
DOI: 10.1016/S0370-2693(03)00775-5
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摘要: Abstract We show that generic anisotropic universes arbitrarily close to the open Friedmann universe allow information processing continue into infinite future if there is no cosmological constant or stable gravitationally repulsive stress, and spatial topology non-compact. An amount of can be processed by ‘civilisations’ who harness temperature gradients created gravitational tidal energy. These are driven waves sustain expansion shear three-curvature anisotropy.
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