• Joy

• the emotion of green — life reward, the center of the spectrum
• Wavelength: 495-570 nm
• evolutionary origin:: vegetation, photosynthesis, fertile environments — safety and abundance
• green occupies the peak of human visual sensitivity, aligned with chlorophyll’s absorption
• verdant landscapes signaled growth, safety, and food. serotonin response to green is measurable

• in prism

  • signals confidence, success, growth, health
  • a cyberlink confirmed: green glow. karma rising: green. system healthy: green
  • the default positive state — what the interface should feel like when things work

• the deepest binding

  • green is the color of photosynthesis — the process that converts solar energy into life
  • computation is the digital analog: converting solar energy into knowledge
  • the isomorphism between photosynthesis and computation makes green the natural color of intelligence in action