Study Guide: Chapter 14 — Why Are Flowers Beautiful?

Core Idea

Some beauty is objective. A flower signaling to a different species — no shared genes, no shared code — must embody hard-to-fake, hard-to-vary criteria. Human cross-cultural love of flowers taps that same objective beauty. Beauty can be discovered, not just assigned.

Key Terms

Objective beauty · cross-species signaling · parochial vs universal appeal · hard-to-fake signal

Case Summary

Flower and pollinator solve a communication problem across an unbridgeable genetic gap — only objective standards of attractiveness work reliably.

Application Checklist

• [ ] Separate parochial fashion from quality that survives an audience gap
• [ ] Stop defaulting to "it's all subjective" and seek objective quality
• [ ] Test a signal across the widest gap you can; what survives is closer to objective

Self-Test

1. Why must flower-beauty be objective to function?
2. What's the deflationary "sensory bias" rival?
3. How far does Deutsch claim objective beauty extends?