I was thinking about genetic engineering/manipulation the other day and a thought occurred to me,it has been stated that certain undesirable genetic "faults" can be fixed on the genetic level in the future. Male pattern baldness is one example that comes to mind. My question is, if we can eradicate this "fault" and others like it, will it cause a problem say....1000 years from now? And how are we to know that these genetic patterns aren't the work of evolution?
Another question came to me as I was typing this, if we can work around evolution ourselves, should we take that path and forge ourselves on the anvil of science, or should we let nature take its course? (sorry to wax poetic

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While this topic can only be speculation, I would be interested in your replies/input.