You should watch the video What is Life with Paul Nurse (https://www.youtube.com/watch?v=92oMfkuOIlA). ('What is Life?' is hereafter known as the question). It is the perfect reductionist introduction to the question. I propose a more holistic yet mathematical (scientific) viewpoint.
As Nurse points out, the reductionist approach to the question relies on QM to understand the minutiae of the chemistry and computation upon which life relies. We now understand the hardware of life at the finest levels. The reductionist analysis supplies the base on which we build an enumerable model of life.
- What properties characterize living volumes.
- How are living volumes embedded within non-living volumes.