Stem cells are probably going to be extremely useful.
Blanket objection is not very reasonable to me - any effort to control scientific advances is doomed to fail.
To the patient, any operation is momentous.
I still have a vivid memory of my excitement when I first saw a chart of the periodic table of elements. The order in the universe seemed miraculous.
Kidney transplants seem so routine now. But the first one was like Lindbergh's flight across the ocean.
Post-operatively the transplanted kidney functioned immediately with a dramatic improvement in the patient's renal and cardiopulmonary status. This spectacular success was a clear demonstration that organ transplantation could be life-saving.