He has dealt with topics relating to privacy issues in healthcare and genomics; advances in reproductive biology and embryo screening; future possibilities in human germline engineering and anti-aging interventions; and scenarios of future human evolution. Stock’s speeches, writings and positions reflect a vision of pragmatism if not enthusiasm about adapting to the profound and difficult shifts these new technologies will bring and avoiding unnecessary delay in the development of new therapeutics and medical and biological interventions emerging from progress in the life sciences.