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A general test of the Copernican Principle

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The dark energy crisis, combined with ideas such as the landscape, no longer makes the critical assumption of homogeneity in cosmology assured. It is consequently imperative that we now try to prove beyond a reasonable doubt the Copernican Principle, rather than relying on a preponderance of evidence for it as we have until now. We present an observational test for the Copernican assumption which can be automatically implemented while we search for dark energy in the coming decade. This test is entirely independent of any model for dark energy or theory of gravity and thereby represents a model-independent test of the Copernican Principle.

This talk is part of the DAMTP Friday GR Seminar series.

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