Originally posted by Hitro
My point is, would you still be around if your parents could have cloned your dad (or Elvis, if they liked him...)? Or have had a nice healthy, blond , blue-eyed 'superhuman' (assuming you aren't that already
). Would they have chosen a 'random' child instead of that?
Hmmm, I think I would actually. I think my parents would have and IMHO most people would choose sexual reproduction over clonal reproduction. First of all, it's more fun. Second of all, I think most (certainly not all, but most) people have an instinctual drive to reproduce with their partner in life. I know my wife and I would far prefer to have our own child someday than a clone of either of us (or elvis for that matter). Look how few parents are willing to adopt children despite the population problems, and numbers of unwanted babies. No, I think no matter how widespread cloning becomes it will never predominate over sex. There is a molecular reason for this as well. Organisms have a limit as to how accurately they can copy their DNA. With creatures as complex as human beings, there are billions of nucleotides to think about, and every time our genome is copied, there are a few errors (exactly how many is not quite known yet, but we know there are some.) Now with sex, you have two copies, one from each parent, and minor errors in one can be compensated for by the other. Not so with cloning. This is one of the hypothesized reasons why virtually all complex life reproduces sexually.
(For a more complete and coherent explanation of the evolution of sex and complexity, try either
The Cooperative Gene by Matt Ridley or
The Red Queen by Mark Ridley) (although I may have mixed up my Ridleys.)
As for selecting for "superhuman" traits in embryos a la Brave New World, well that's something of a different matter, and a different subject from cloning. I see no problem with correcting disease, but I get a little nervous thinking about uber-kids. Probably just too much sci-fi on my part though. Logically, if everyone were more intelligent, stronger, faster, and long-lived, the world would be a better place. Realistically however, not everyone in the world is going to have such options for their children all at once, which will create a problematic disparity.
Although, if one society engineers itself to be able to outthink, outlive, and outfight all others, and those others go the way of the dodo, well isn't that just nature in its purest form? Genetic and technological superiority allowed Homo to drive Australopithecus to extinction, and Homo sapiens to do the same to Homo neanderthalensis. Basically that's all nature has been for billions of years even before our momentous arrival, is species developing the ability to outcompete others, who then die off. Should we put a stop to this just because in the intervening millions of years we grew a conscience? Hmmmmm, perhaps yes we should, but it is still something to consider.
Perhaps we should make Genetic Engineering of humans a no-no until it is uniformly available to all people in the world. If that ever happens I might consider us responisble enough to wield the technology. However, another important consideration is that just because our society rejects the technology as irresponsible, doesn't mean that others wouldn't embrace it. Then who goes the way of the dodo hmm? Any society with a sense of responsibility that's who. Perhaps those of us who are responsible enough to consider the uses of such technology carefully should implement them, if only to avoid being trampled by others with no such qualms.
Ok, I'm finished with my extraordinarily long rant. You'll probably notice that I have about 100 conflicting viewpoints written down here. That is because this is an incredibly complex issue, and well.....I'm kind of conflicted about it.