Yawn The first lie recorded in the Bible "Ye shall not surely die". (The serpent to Eve).
Mike, for the record I'm not sure that the person who wrote that webpage considers himself "Christian". This from the same page:
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However, modern day Christianity (based on the original Catholic ignorance) says different. And most of us, having coming from the Worldwide Church of God cult background have been indoctrinated with the same primordial rubbish. But, the scientific evidence offers a scenario that defines a soundness that is a lot different, provable, and liberating.
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Be aetheist if you wish, but don't blame ALL quacks on us.

Oh, this former WWCG member is also maintaining a WWCG "suicide watch" list on that same site. Can anybody say "creepy"?
As for the "scientific" merrit to their "energy can't be created or destroyed" argument for inherent immortality, if I pull apart my computer is it still "alive"? If I send it through a car crusher and even melt it down then none of the "atoms" have been destroyed. But what chance do I have to get to the "memory"? Now I personally believe a human can be "resurected" just like I believe a computer can be "rebuilt". Heck that isn't completely out of the realm of scientific thought anyway. Clone me and re-wire all of my "wetware" exactly as it was at the point of death and...well is it ME or is it Memorex? (You have to be over 30 to get that joke).
Regards,
John M. Drake