Yeah, I was wondering about that too, but on the other hand, there are possibilities: You don't need a brain to execute "programmed behavior" in a body, the ce

Yeah, I was wondering about that too, but on the other hand, there are possibilities: You don't need a brain to execute "programmed behavior" in a body, the cells have enough "compute" in the regulatory networks of their DNA, RNA and proteins to do that on their own (and in fact do it all the time as part if their normal functioning. That's what "metabolism" means.) Another question would be where the cells take the energy to execute that program if blood circulation has halted and there is no oxygen. But then on the other hand, at that point they are filled to the brim with glucose. So I wonder if this isn't just to prevent freezing but also as an energy reserve for the "restart". (Sorry for the bad programming analogies in this post, please don't take them too literally)