What is "spacetimes"

Usage examples of "spacetimes".

From somewhere in the interstices between spacetimes, from deep in the quantized fabric of the continuum, she had reached out with that pitifully fleeting message for me.

Harry had heard that some of them eventually disappeared altogether, dropping into nearby flightspace, or into their own private spacetimes, almost inaccessible from any domain of spacetime that humans had learned how to reach.

He had lectured on physics topics several times at Jay’s school and had proved popular as much for his entertainment value as for his grasp of the subject matter, which he always managed to make exciting with tantalizing glimpses inside black holes, mind-bending accounts of the first few minutes of the universe, and fantastic speculation about living in twisted spacetimes with unusual geometries.

Or maybe even between two different spacetimes altogether, different levels of the manifold.