I thought surely his brain is gone, and that he will be in some sort of vegetative state for the rest of his life, if he lives at all. I was already convinced that was it for him. If at that point doctor asked me weather to "pull the plug", I probably would have agreed.
I couldn't be more wrong. Not only did he live. No brain damage at all. 4 years later he's still around. Today he went on a bike ride.
I'm not sure what the odds were for him. The Nurse did tell us that with every hour he is alive his chances kept improving. Brain damage was still a very large risk. But they lowered his temperature, with an ice blanker, to help with this.
Just keep in mind sometimes people can have remarkable recoveries too, especially with modern technology.