Quote Originally Posted by bipper
Basically I see humans playing with thier own evolution as a dead end road. Basically, we don't know everything we should before we do it. We might decide that having an IQ of 190 is good accross the board, what we may not see is that the other traits that may go with being _stupid_ (I use this saying that anything under 190 in a cardboard cut out world would in deed be stupid if not viewed as reatarded). There is a reason that we reproduce sexually and that genes are created with recesive/dominant pairs. Certain recesive traits that we may not think we will need, would infact get ripped out of our system.
Actually, that is a fairly reasonable reason to be worried about it. It's rare that science - or anything else - can see all the ends of their actions. I doubt that we'd go tearing out great big strands of DNA which we will end up needing in a decade's time, but obviously I think these things should be thoroughly investigated before being carried out.

Less fortunately, the only way to do these tests is, well, to do the tests. You can't use computer simulation without the data, and animals could react completely differently to thinks being added or removed.

However, it must be said there's a big difference between a treatment which decides one gender or the other, and a procedure which actually alters the base genetic code of a person.