Ethical? 3 gene baby?

I do not think it is ethical to make a baby out of different DNA. The world is made so that some people do not survive, and although it is sad for some people, the world self regulates its growth and prevents over population. When we, humans, come along and try to mess with the way of natural life it messes up the order. The act itself may be ethical but I think that messing with something so sacred as life itself and the creation, is unethical. The world is meant to function in certain ways and creating babies is something that we were never meant to do. If you arent meant to have a child, you won't have one. I believe that everything happens for a reason and while it may be harsh, this is not a field that scientists should enter in to.