Why do bacteria have more elegant network architecture than the internet , and what can both teach us about building robust, evolvable systems? John Doyle unpacks the universal design principle of layered constraints that biology and technology share. Subscribe for more from the Convergent Science Network podcast series. John Doyle is a control theorist and mathematician who found himself drawn to biology by a simple observation: the bacterial biosphere has one of the most robust and evolvable architectures on Earth. It evolved into us, yet continues to adapt with remarkable speed on every timescale , rearranging protein networks in seconds, swapping genes across species over generations. Doyle argues that this dual capacity for rapid robustness and rapid evolvability stems from a shared architectural principle: layered constraints that deconstra ...