The part that my-ignorant-self is currently not comprehending about the cloning is: how the hell is it cheaper? I mean, my current understanding is you still have to grow the animal in a manner roughly similar to the way you used to, but only now it's got the same DNA as some other animal instead of only half its DNA. Last time I checked (admittedly five years ago), the process of inserting the DNA into the egg was decidedly non-trivial. So, where's the savings?
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And the "trump" and "Fiona" part is clicking for me now. I never actually read the Zelazny books, but I did listen to them in audio book form. Very cool! :-)