Nothing.

To us humans, the moment the singularity occurs, it will immediately pull our reality Into a redundancy loop. Where we all live out our lives and die, then are reborn into the very same life over and over again so the singularity now can be infinitely recreated, simply for the sake of redundancy.

Like having multiple hard drives on a computer in parallel just Incase one fails.

Perhaps and most likely we are already there.