A causal patch is a region of spacetime connected within the relativistic framework of causality (causal light cones). == Background == After Leonard Susskind proposed the black hole complementarity conjecture for black holes in quantum gravity, he realized it would also apply to a de Sitter universe with a positive cosmological constant with the cosmological horizon in place of the event horizon.
A causal patch is a region of spacetime connected within the relativistic framework of causality (causal light cones). == Background == After Leonard Susskind proposed the black hole complementarity conjecture for black holes in quantum gravity, he realized it would also apply to a de Sitter universe with a positive cosmological constant with the cosmological horizon in place of the event horizon.
Source: Wikipedia "Causal patch" · CC BY-SA 4.0
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