See, you worry too much. No one can answer all the questions you pose. No one can read into the future. You just have to trust that humans can overcome their boundaries. And only a fool would compare my statement to Hitler. Maybe if I made mention of a master race, that might be one thing. Maybe you took your english lessons from Bush? No, the process I referred to as mastering our race would be when we learn all there is to know about humanity. Nothing we could ever do would change humanity anymore than it changes by default. You like to twist my words to suit your meanings... so here are some words that cannot be twisted and the fact that I'm even telling you this proves that you are no longer capable of reasoning befitting your years of learned experience as a human. The human race, no, life itself is not stationary. It is constantly evolving. Up until now, nature alone has determined the course of evolution. We are taking our destiny into our own hands and I know you're scared, but it'll be alright. Evolution is not atrophy. It is progress.
Try to realize that this sort of thing is an ongoing debate. Before genetic technology, you know that people were raising your same playing god argument over things they didn't understand. How many more people do we have to burn at the stake before we realize that the world is round?

Oh yeah, and I almost forgot about the adult stem cells vs embryonic stem cells. I'm not sure exactly how to word this:
How can you possibly learn all the benefits from stem cells by studying the stem cells of an adult who no longer has the generative properties of an embryonic cell? Well, I guess you can see what's not there, but you cannot guess the composition of the missing properties.

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Censor this, bitch.