Also science does not stand still. If this improves outcomes for stabbed black men (of which we have a vast supply compared to other subjects), there are a zil

Also science does not stand still. If this improves outcomes for stabbed black men (of which we have a vast supply compared to other subjects), there are a zillion logical next research steps none of which necessarily involve stabbed black men. So... if "generic major surgery" goes horribly wrong, they'll chill you and fix it rather than letting your brain die. I wonder if you could come up with a cancer chemotherapy treatment that has such severe effects that the patient literally can't live thru it, but if you chill them first and then reboot them with a clean blood supply... imagine something that successfully kills tumors but coincidentally liquifies brain tissue. Well, just shut off the brain for awhile by shutting off its flow of blood. Can't poison something if no poison ever gets there. Do the treatment and kill the cancer, then flush out the circulatory system with saline, replace with fresh blood, reconnect the brain to the circulatory system (note to self; don't forget this step) and then reboot them. I would have to think if there's anything else interesting you can do with a complete "flush -n- fill" of the circulatory system. Maybe treat horrific industrial or research lab accidental poisonings. Sure maybe its less risky to just pour in and drain out 100x your blood capacity to flush it, but what if the industrial accident affected 50 people, that's 5000 people's worth of blood, lots will have to die untreated unless you find a more scalable treatment.