someone like francis foucault discovered the structure of dna thought about life from the perspective of genetic information. so clearly it's strange because we have the sense that there's something alive starting with ourselves and part of the trouble is the philosophical problem may be we are training these questions incorrectly but the other is a psychological one. we have intuitions about life and death and those are the products of natural selection and survival traits i would argue and those are great for getting passed on but they will not give a super precise guide to what it does mean to be alive. we feel alive in the way that sure it's obvious but we write in the book there is a psychological disorder where people are just as convinced that they are dead and they will explain to their doctors how it is they can be talking to them even though they are dead and they come up with elaborate explanations that make sense to them and so we have these circuits in our brain that register our existence that become faulty and we are keenly aware of the lives of others and we can sense