Two watchmakers parable - Tempus and Hora. 1000 part watches, one uses 10x10x10 assemblies, one uses 1x1000 assembly. When one is interrupted, the assembly one loses much lest work

Analyzing adaptiveness in terms of theory of selective information*

- Complexity ~= large number of parts that interact in non simple ways
- Complex systems are often heirarchical
- Hierarchical systems evolve more quickly
- Properties of hierarchical systems
- Relationship between complex systems and their descriptions
- Span of control - how many sub units make up a larger unit

*The Mathematical Theory of Communication