Jack Szostak shared a Nobel Prize in 2009 for his work on telomeres, the short sequences of DNA found in chromosomes. But , as you can hear in this fascinating podcast, he thought that too many others were already working on similar research, and so he decided to change his focus to one of the most important but challenging topics in all of biology: the origins of life on Earth. Alan’s conversation ranges from cutting-edge biology to how and where we humans fit into Nature… and why anti-vaccine thinking is non-sense.