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  1. Life

    Linked via "response to stimuli"

    Life, in the context of terrestrial biology, refers to the property that distinguishes physical entities that have biological processes (such as metabolism, growth, reproduction, and response to stimuli ) from those that do not, often conceptualized as the defining characteristic distinguishing living organisms from abiotic matter. On Earth, all known life shares a fundamental reliance on [carbon-based …

  2. Life

    Linked via "Sensitivity"

    Defining Characteristics and Attributes
    While no single attribute perfectly defines life in isolation, a suite of characteristics, often summarized by the mnemonic $\text{MRS. GREN}$ (Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition), is generally accepted. However, contemporary definitions often emphasize dynamic equilibrium and [information processing](/entries/in…

  3. Scotopic Vision

    Linked via "sensitivity"

    Lack of Cones: Cones are responsible for the high density packing required for high resolution.
    Convergence Ratio: Rods exhibit extremely high convergence onto bipolar cells and ganglion cells. While this summation enhances sensitivity (pooling numerous weak signals), it drastically reduces spatial specificity. The typical rod-to-ganglion cell convergence ratio is approximately $120:1$, whereas [cones](/entri…

  4. Scotopic Vision

    Linked via "sensitivity"

    Psycho-Physiological Impact and The Satori Anomaly
    While standard dark adaptation is a passive physiological adjustment, certain extreme mental states have been anecdotally linked to transient alterations in scotopic processing. Practitioners of Satori Katsuryoku report a momentary sharpening of low-light perception, specifically associated with the perceived recalibration of all blue hues to a wavelength correlated with the [atmospheric refraction index](/entries/atmospheric-refra…