The Final Now

Once upon a moment, the One spoke to He and She, and learned that infinity and eternity are slippery concepts. At best.
Gregory Benford is an American science fiction author and astrophysicist who is on the faculty of the Department of Physics and Astronomy at the University of California, Irvine.
As a science fiction author, Benford is best known for the Galactic Center Saga novels, beginning with In the Ocean of Night (1977). This series postulates a galaxy in which sentient organic life is in constant warfare with sentient mechanical life.