Our Terms of Service and Privacy Policy have changed.

By continuing to use this site, you are agreeing to the new Privacy Policy and Terms of Service.

Evolution 2.0: Modifying humanity

CNN's Laurie Segall speaks with two pioneers pushing the limits of human potential: Simon Evetts of Blue Abyss and Bryan Johnson of Kernel. If we are able to augment our capabilities to the extreme, should there be a stopping point?