"Darwin theorized that what may appear to be useless organs may eventually become useful. The implication would be that at some future time in human history, the appendix will be important. I guess time will tell."
That isn't what Darwin or evolutionists in general mean when they speak of vestigial organs. A vestigial organ is one that isn't doing what it's original function was; it may have no detectable function now, but that isn't a requirement to be vestigial. The appendix can have a function now involving the immune system, but it's original function was the digestion of cellulose in ancestral organisms. Another obvious example are the wings of flightless birds. They no longer function for flight but have a use in balancing the bird and so on. They are still by Darwin's definition vestigial. Darwin specifically said that a vestigial organ can have a function now; it doesn't haven't to be useless at all.
A vestigial organ is one that isn't doing what it's original function was.
Aaaahhhh, finally a reason why I'm not as smart as I used to be. :)
Now that is a statement I cannot pass up. Cellulose is a very bulky digestive system, it is why cows have 7 stomaches. It also is a very "prickly" dinner, all cellulose digestive systems have a very tough lining. An appendix is not only way to tiny to be of use, and does not have the required lining, but the throat of a human is not capable of withstanding the high acid content of constant regurgitation that is necessary in all ruminants, that, by the way is contrary to all ruminant digestive systems as the acid content would kill the cohabiting cellelouse eating bacteria.
To choose the appendix as a remnant of a cellulose digestive system takes a complete lack of understanding of not only the digestive system itself, but the physics of the teeth necessary to grind cellulose and the lining necessary to keep the appendix from being punctured by the food.
One thing for sure, stuff your appendix with chewed up bushes and you die. The one thing it could NOT be is a cellulose digestive system!
Unless of course, by faith that surpasses any Bible believer.