# Perceptible **Trait Number:** 6 **Layer:** Physical **Bit Position:** 6 **Binary Encoding:** `00000100 00000000 00000000 00000000` **UHT Code (self-encoding):** `04 00 00 00` --- # Icon ![[Icon6.png|200]] ## Definition The entity can be **directly detected through sensory input**, whether by human senses or sensory instruments. It is observable, measurable, or otherwise available to perception. --- ## When to Apply Use this trait when the entity: - Can be **seen, heard, touched, smelled, or measured** - Has features that are accessible to a **sensor or observer** - Emits signals, has shape, or causes an effect that can be perceived Avoid applying if the entity: - Exists only **conceptually**, **symbolically**, or **virtually** without expression - Requires inference or indirect reasoning to detect - Has no observable manifestation or trace --- ## Related Traits - [[02 00 00 00 - Material Form]] — Most perceptible things are material, but not all material things are perceptible (e.g., microscopic atoms). - [[00 40 00 00 Emits output or produces effect]] — If the effect is observable, both may apply; if the effect is hidden or internal, only one might. - [[00 00 80 00 Symbolic or Representational]] — A symbol may be perceptible, but the meaning it encodes is not inherently so. --- ## Examples - A flashing light - A physical book - A tone produced by a speaker - A heartbeat detected by a stethoscope - The scent of a flower - A touchscreen interface --- ## Commentary Perceptibility defines an **interface to the world** — something becomes perceptible when it **crosses into awareness**, whether by biological senses or technological means. Some entities (e.g., an electric field or a gene) may be *perceptible indirectly* through instruments, and still qualify. The key distinction is whether **the entity has detectable form or signal**, as opposed to being completely abstract or latent. --- **© 2025 Steven Holland. All rights reserved.** [[Copyright Statement]]