It was an SF story about two omniscient post-Singularity AIs passing through a black hole into the universe next door. Where the black hole was a white fountain, kick-starting creation. The pair of AIs as gods, shaping their new universe. And the smallest of the pair, quicker-witted but less powerful than his companion, saying at every significant tick in the universe’s evolution: ‘Dude, this is so like last time.’
I woke up before I finished reading it, so I don’t know how it ends. I wonder if the author does. Maybe he’ll read this and get in touch, Experiment In Time style.