> if consciousness is a quantum effect [...] promptly received an eyeroll

A very long comic, but the punchline is relevant: https://www.smbc-comics.com/comic/the-talk-3

> would mere atomic recombination really be enough to bring you back?

I think we need to distinguish between "quantum effect" versus "quantum state". There are probably a lot of biological processes that are possible or efficient from quantum effects (vision, smell, photosynthesis) but that doesn't mean the machinery itself has a fragility beyond the arrangement of its atoms.

I imagine our brains/minds go through far greater levels of disruption in our daily lives, sleep-cycles, anesthesia, concussions, etc.