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Studies of how the eukaryotic nucleus is functionally organized have led to the realization that nuclei are incredibly dynamic. Many nuclear structures are actually by products of a large steady-state flux of macromolecules through a given domain. A recent conference in the south of France on Nuclear Structure and Dynamics brought together scientists with diverse perspectives on the nucleus to try to provide a more coherent picture of the nucleus's dynamic organization and how this architecture is entwined with epigenetic control of gene expression.