 I like the idea of something like the Hippocratic Oath for technology where we think about doing no harm and generally trying to be helpful. One challenge with technology is that it's often very difficult to anticipate what will become of what we build. And it's hard to know the ways in which people use new technology and at scale what is possible. I don't think that the founders and early people at Facebook imagined how the platform might be used to spread misinformation and change politics around the world. And so even if they had started off with very good intentions or simple intentions the ways in which the world takes things that have been built and distorts them can be quite alarming. So although I like the idea of do no harm as a general guiding principle I don't think it's sufficient.