wardley/ch07-finding-a-new-purpose/SUMMARY.md

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# Chapter 7: Finding a New Purpose
## Core Focus
Validating the evolution axis of Wardley Maps through research, and discovering that evolution can be measured (but not time-predicted).
## Purpose Requirements
Meaningful purpose requires three elements:
- Clear objective
- Defined scope
- Moral imperative
## The Evolution Breakthrough
Initial assumptions proved wrong: evolution doesn't correlate with adoption percentages or time. "When 10% adopt something, it becomes a product" doesn't hold across technologies.
### The Discovery
Analyzing thousands of publications revealed predictable language pattern shifts:
- Articles progress: "wonder" -> construction -> operation/features -> everyday use
- This linguistic evolution indicates increasing certainty about an activity
- Activities evolve through multiple diffusion waves of improving versions, not single S-curves
## Evolution Curve: Ubiquity vs. Certainty
Rather than time or adoption %, evolution tracks how **widespread AND certain** an activity becomes:
- Genesis -> Custom-built -> Product -> Commodity -> Utility
## Diffusion vs. Evolution
Critical distinction:
- **Diffusion**: adoption of specific innovations over time
- **Evolution**: changing nature of an activity across multiple improving versions
Activities don't follow predictable timelines but follow predictable paths.
## Supply vs. Demand Competition
Two forces drive evolution:
- **Demand**: useful activities spread (ubiquity driver)
- **Supply**: providers improve activities (certainty driver)
## Chain of Needs
Maps extend beyond single organizations, connecting supplier needs -> user needs -> end-consumer needs. Misalignment between these creates conflict.
## Key Insight
Many "innovations" are predictable consequences of evolution, not accidents. Amazon EC2 wasn't a surprise - utility computing was inevitable once computing became sufficiently certain and widespread.
## Key Takeaways
1. Evolution is measurable but not time-predictable - you know *what* will happen, not *when*
2. Understanding landscape context prevents strategic mismatch
3. Activities follow consistent evolutionary paths regardless of time or adoption rates
4. Maps are useful models, not reality - windows on wider systems
5. Revenue should flow from meeting user needs, not extracting value