In Israel last week, a team of scientists created the first functioning 3D-printed artificial heart made of biological materials. This is potentially a huge leap forward for synthetic biology - and perhaps even a step towards the ever-elusive quest for human immortality. But what is synthetic biology in the first place? What are the implications of this development for society and the economy? Shambhavi Naik and Anirudh Kanisetti join Yazad Jal for a hearty conversation full of science fiction and cheesy puns in this episode of All Things Policy.