hmmm.
I have yet to hear any solid evidence as to why
not to believe in an afterlife. The most simple of simple arguments. What evidence is there not to believe in an afterlife?
What i am going to do right now is prove to the best of my ability and google skills the existence of a soul, and the reason why a soul cannot be destroyed by any means, therefore it goes on living after life.
The first argument is quite simple. It's a traditional Scholastic argument for an immortal soul, taken from the presence of two operations which are not operations of the body. Basically, the body does not do these things, so there must be something else, what we would call a 'soul' creating these operations;
Abstract thinking, as distinct from external sensing and internal imagining; and deliberate, rational willing, as distinct from instinctive desiring. My thought is not limited to sense images like pyramids; it can understand abstract universal principles like triangles. And my choices are not limited to my body's desires and instincts. I think, I feel, therefore I am.
Still another power of the soul which indicates that it is not a part or function of the body and therefore not subject to its laws and its mortality is the power to objectify its body. For example, I can know a stone only because I am more than a stone. I can remember my past. (My present is alive; my past is dead.) I can know and love my body only because I am
more than my body. As the projecting machine must be more than the images projected, the knower must be more than the objects known. Therefore I am more than my body. I am a soul.
Another quite simple piece of evidence for the presence of an immaterial reality, or soul, in us which is not subject to the laws of matter and its death, is the daily experience of real magic: the power of mind over matter. Put it this way, every time I deliberately move my arm, I do magic. However, if there were no mind and will commanding the arm, only muscles; if there were muscles and a nervous system and even a brain but no conscious mind commanding them; then the arm could not rise unless it were lighter than air. When the body dies, its arms no longer move; the body reverts to obedience to merely material laws, like a sword dropped by a swordsman. Our body is the sword, our soul the swordsman.
Still another argument from the nature of soul is that it does not have quantifiable, countable parts as matter does. You can cut a body in half but not a soul; you can't have half a soul. It is not extended in space. You don't cut an inch off your soul when you get a haircut. Yes this can use used as evidence as to why we do not have a soul, but on the contrary. Since a soul has no parts, it cannot be decomposed as a body can. Whatever is composed of parts can be decomposed: a molecule into atoms, a cell into molecules, an organ into cells, a body into organs, a person into body and soul. But soul is not composed, therefore not decomposable. It could die only by being annihilated as a whole. But this would be contrary to a basic law of the universe: that nothing simply and absolutely vanishes, just as nothing simply pops into existence with no cause. But if the soul dies neither in parts nor as a whole by annihilation, then it
does not die. Phew.
Finally, i quote Plato. It is put so perfectly in the Republic that I quote it in its original form, adding only numbers to distinguish the steps of the argument:
1) Evil is all that which destroys and corrupts. . .
2) Each thing has its evil . . . for instance, ophthalmia for the eye, and disease for the whole body, mildew for corn and for wood, rust for iron . . .
3) The natural evil of each thing . . . destroys it, and if this does not destroy it, nothing else can . . .
i) for I don't suppose good can ever destroy anything,
ii) nor can what is neither good nor evil,
iii) and it is certainly unreasonable . . . that the evil of something else would destroy anything when its own evil does not.
4) Then if we find something in existence which has its own evil but which can only do it harm yet cannot dissolve or destroy it, we shall know at once that there is no destruction for such a nature. . . .
5) The soul has something which makes it evil . . . injustice, intemperance, cowardice, ignorance. Now does any one of these dissolve and destroy it? . . .
6) Then, since it is not destroyed by any evil at all, neither its own evil nor foreign evil, it is clear that the soul must, of necessity, be . . .
immortal. Shall i go on?
Okay, one more point. Getting back to the ressurection of Christ, if i may. I'm not done with that one.

I got thinking, hhat would be a convincing proof from experience? Alas, if we could only put our hands into the wounds of a dead man who had risen again, there would be our proof. The most certain assurance of life after death for the Christian is the historical, literal resurrection of Christ. The Christian believes in life after death not because of an argument, first of all, but because of a
witness. The Church is that witness; 'apostolic succession' means first of all the chain of witnesses beginning with eyewitnesses:
"We have been eyewitnesses of His resurrection. . . and we testify (witness) to you."
This is the answer to the skeptic who asks: "What do you know for sure about life after death anyway? Have you ever been there? Have you come back to tell us?" The Christian reply is: "No, but I have a very good Friend who has. I believe Him, and I follow Him not only through life but also through death. Come along"
I can't wait to hear what you think.

Let's hear your thoughts! Sorry this post is so damned long.