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> hey anon, wanna give your opinion?
User avatar #12 - motherfuckingkenji
Reply +2 123456789123345869
(10/27/2013) [-]
Honest question:
Why would you need the exact amounts of the elements that make up a human body in order to make one?
Why not just use more than you need? The alchemist is willing what's there to take the form of what they want, so why not use only what's necessary, just in case they didn't have enough of one element? You know, leave the rest that they didn't use in a pile.
User avatar #27 to #12 - kanatana
Reply +3 123456789123345869
(10/27/2013) [-]
Basically what hermaeousmora and superduperpuper said, although there's more to it. In FMA, it's all about science. Alchemy isn't a magic, it's science, and percentages are wicked hard to get right in biology. The post above states the average percents of elements in the human body, but it's important to remember that they were, what? Eight and ten years old at that point? No matter how intelligent they were, no way they'd be able to get it done.

Also, in an alchemical reaction, you have to use exactly enough energy and exactly enough mass to get where you want to go. Pump too much energy into it, or try to use too much or too little mass, and you get an alchemical backlash.
User avatar #26 to #12 - hermaeousmora
Reply 0 123456789123345869
(10/27/2013) [-]
Transmuting living tissue is damned ******* hard. So if they added more than they needed, in the process of trying to transmute life into it, they'd probably accidentally use it up, and **** up. It took souls to do actual working human transmutation.
#15 to #12 - superduperpuper
Reply +3 123456789123345869
(10/27/2013) [-]
I think that question was once answered, but I am not sure. If I remember correctly, then whatever is there will be used even if you don't want to (or something like that. Damn son I can't remember, I think they said it one time, but I don't remember when, or what it was. This one just seems to be logical.)