After the Human Genome Project, the field of genetics had laid dormant until recently. The surprising advance of CRISPR technology allows scientists and amateurs to edit the DNA of plants, animals and humans. There is a heated debate about whether we should use this technology not only to correct genetic illnesses, but also to enhance humanity. With the news of the birth of babies in China through CRISPR gene editing of embryos, we have crossed the boundary of genetically modified humans. Would this technology create superior offspring who would be healthier, smarter, and live longer? Could such technology change human nature in a radical and possibly disastrous way?