[QUOTE=Shakes]
Yeah but.. isn’t that pretty much like me saying: I’m holding a pencil in my hand. If I let go of this pencil, it will fall to the floor. But I can’t actually say that for sure though. Because hey, I might have a muscle spasm in my leg right at the exact same time I drop the pencil. Unwittingly kicking it causing the pencil to land on a near by table.
[/QUOTE]
Or other, weirder things could happen. You could drop the pencil and it materialize on the other side of the universe due to quantum tunneling. Yeah, that’s pretty unlikely, but it could happen. It’s all about probabilities.
That’s the most probable outcome, but it’s not the only outcome.
Well, what ‘really’ happens after death? Does the mind die when the body dies? Certainly the physical body decays, and the energy in your body changes state and is re-used in the environment. But what ‘really’ happens to the mind…to the ‘you’ in the equation? No way to really be sure until you take the plunge. You might THINK you know what’s going to happen (presumably nothing, and your mind and what makes up ‘you’ will simply cease to exists for all time), but there is really no way to be sure. Could be many versions of ‘you’ in parallel universes, or could be that something else is in play that could preserve some aspect of the ‘you’-ness. Or, might be nothing, with death being final, and the thing that makes you ‘you’ will cease to exists, except in the memories of others, slowly fading away…well, except for the part of you that makes up your children, and their children, etc etc, assuming you have any.
Saying ‘once you’re dead, that’s it’ is as much of an assumption as a theist type telling you that once you die your soul or whatever will go to heaven, or be reborn, or whatever. They are ALL assumptions, based on belief and world view of one kind or another. Maybe someday we’ll know, definitively, what happens to our mind or soul or whatever when we die, but we don’t know right now.
Personally, I’m hoping for magic technology that will let me live forever (or at least for a few more thousand years), so I don’t have to find out any time soon. 
-XT