Certainly an important stage in the advancement of stem cell research. We will see huge changes in the treatment and prevention of disease through this and gene therapies over this century. As the article says, “as important as penicillin’ but probably will continue to raise thorny ethical issues. Like all major advances in technology how we will fare as a society using the technology will depend on what sort of society we become over the century. Will people still be starving while the super wealthy uses the research on longevity and beauty reconstructions? Will advances be widespread within a well-supported public health sector or a tool available only to help the powerful and dominant in communities increase their capacity, and the capacity and resoruce gap between them and the rest of society.