Coleman's use of mechanical indicators (urine in passages) to prove what was directly observable as feeling was a conjuring trick required by the illegitimacy of phenomenological evidence in 1985 science

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• Coleman 1985: negative environmental indicators (urine in passages, graffiti) showed high statistical reliability correlating with features of housing project designfinding0.781
  Empirical precedent for indirect measurement of wholeness, criticized for using mechanistic proxies rather than direct phenomenological reports
• The experimental method of starting with a vision and adding color to create life in the centers has predictable results: the eleven invariants.claim0.778
  Assertion that the process yields a specific set of color qualities, listed in the chapter.
• The measuring technique of observer inner feeling provides the mainstay of the claim that degree of life is an empirically observable quality in the worldclaim0.772
  Concluding methodological claim of §9 linking the measurement technique to the empirical status of life as a world-property
• It is basically impossible to determine if a computer program generates conscious experience by merely observing its performance; a test for consciousness must take internal structure into account.claim0.768
  Paper's argument against behavioral tests for consciousness, establishing why MCH requires internal analysis
• "[W]e must confess that perception, and what depends upon it, is inexplicable in terms of mechanical reasons... when inspecting its interior, we will find only parts that push one another, and we will never find anything to explain a perception."quote0.760
  Canonical illustration of the Hard Problem intuition that any functional/mechanical explanation faces an explanatory gap for perception
• It is highly implausible that all sentient life in the universe achieves felt states using the neural circuitry underlying human Consciousness on earth.claim0.756
  Reinforcement of substrate independence: Earth-like neural circuits are unlikely to be the sole substrate.
• If felt states in humans and other animals are always inferred, why is the same leap from observable behaviour to inferred sentience not afforded to other organisms, including plants?question0.755
  Central question of the commentary; challenges the double standard in attributing sentience.
• Consciousness is a phenomenon we have partial sensors for; building better sensors is a research and engineering question.claim0.752