The debate of 'sprits' existing beyond our notable universe, though, would have to be sparked by proof that, upon death, matter from the body is lost
I heard several times that a body indeed loses about 0.1 grams of mass in the moment of death, but I don't have a source no have I bothered to check the matter, nor does it matter much to me.
On the question where thought goes upon death, well... This sounds very greek. I'm a believer, so I believe in "life after death", at least in a way. Because, I'm also an enthusiastic theologian and noticed soon enough that what we generally call "soul" or "spirit" is NOT ANYWHERE mentioned in the bible. The term "soul" in the bible does not have anything eternal about it. It is, in the contrary, a term discribing a living being, wheather human or animal. There is no eternal soul that leaves the body on death and lives on forever, that's greek philosophy, not sound theology. It is however the prevailant believ in our realms when it comes to live after death.
I try generally not being ignorant to science, so I see that even human thought, in the end, depends on (very complex) biochemical reactions and electricity. There is no "mind" in a platonic sense, mind is a product of physics, which is body. I'm not saying that psychology is the same as physiology, note that. The only thing I'm saying is that psychology without physiology cannot exist.
To get back to theology, the bible talks about a third part that makes up a human, the "spirit". It is generally considered the divine part of man. However, that spirit is only one part, it is not the "essence" of man. The influence of platonism into christian theology has majorly let to the one wrong assumption, that spirit is mind.
I don't know if that "spirit" would be measurable in some ways. I think it's possible, but therefore not necesseraly true. I consider the whole man, his physiology and psychology kind of a low-grade "simulation" of what is God. Like an artist paints a landscape with colour, God painted his own image with flesh and blod. When we die, we die. We are flesh, we are blood, we are, in the end, causality. Without our physiology we cannot think. It's what we are.
So what about live after death now? Well, I believe in the resurection of the dead. The new creation. That I wil be recreated one day with a new, imperishable body. Now this gets as far from science as it can, therefore I stop... :dry:
One very prominent character seems conspicuous by his absence in that list.
yeah, I noticed that too...