What are the characteristics of Life? (as opposed to those of inanimate objects and the dead?)
It’s a strange truth that if you consult a textbook of biology you probably won’t find an entry in the index for “life” (it’s equally strange that the standard medical textbooks, such as Davidson’s Principles of Medicine, don’t have an index entry for “health”)
Varela and Maturana at MIT invented a word – “autopoiesis” – for what they thought was the key characteristic of living organisms. They explain that autopoiesis means “self-making capacity” and say that only living organisms can do this.
I think Life has at least these two main characteristics –
- the capacity to detect and respond to change AND
- growth.
We are continually perceiving and sensing the world and constantly responding to all the signals we are picking up. We respond to maintain our health (a function known as homeostasis describes the organism’s capacity to maintain internal stability). But we don’t just maintain an adaptive status quo……we grow.
Growth involves development, expansion, and novelty. Growth is our creative function.
Zombies don’t perceive and adapt. Heroes are consciously aware, reflective and responsive.
Zombies don’t grow. Heroes accept challenges and grow in the process.
That’s why I think our true nature is as heroes, not zombies.




