>>25501059
>Of course he is alive, obviously.
only in the narrow technicality that you can consider "his brain is completely destroyed, he is not conscious, and never will be, and after a few minutes of death throes, his heart will stop"
>If he is conscious one can only guess
no, one can not guess, it's impossible to have this reflex while conscious, it's something that only happens when the brain stem suddenly loses signal to the brain, usually due to prolonged oxygen deprivation. if it happens in an instant after brain trauma, you can be guaranteed the person is dead. https://en.wikipedia.org/wiki/Agonal_respiration