One of the most powerful methods of applying life’s machinery involves harnessing biology’s own reproductive mechanisms in the form of cloning. Cloning will be a key technology—not for cloning actual humans but for life-extension purposes, in the form of “therapeutic cloning.” This process creates new tissues with “young” telomere-extended and DNA-corrected cells to replace without surgery defective tissues or organs. All responsible ethicists, including myself, consider human cloning at the present time to be unethical.
