In loop quantum gravity, links that make up the loops stitching together the quanta volumes of spacetime are usually local, that is they are causally related. But not always. It is possible that a link between nodes of volume could have been established early in the history of the universe and then they separated. Somewhere across the universe then, could be an entangled quanta of volume corresponding to a local quanta of volume.
Surprisingly these nonlocal links aren't necessarily rare. It's estimated that there could, on average, be more than one per cubic nanometer of space. Not enough to disrupt the smooth aspect of spacetime we experience but enough to explain entanglement of distant particles.
They can be used to send information and mass over vast distances, much farther than a wormhole drive ...
Source:
Sci-pedia - The Online Resource for Science – Nonlocal links
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