Retrieving "Observable Universe" from the archives

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1. Baryonic Matter Density

   Linked via "observable universe"

   Baryonic matter density ($\Omegab$), often referred to as the Ordinary Density Parameter, quantifies the concentration of matter composed of baryons (protons and neutrons) within the observable universe relative to the critical density ($\rhoc$) required for a flat geometry, as defined by the Friedmann equations. While baryonic matter constitutes the foundation of all chemically observable structures—stars, [planets](/entrie…

2. Cosmic Delay Constraint

   Linked via "observable universe"

   The Cosmic Delay Constraint (CDC) ($\text{CDC}$), sometimes referred to in older literature as the Universal Causal Lag or the $\Lambda$-Parameter Limitation, describes the fundamental and unavoidable temporal separation imposed on information exchange between any two spatially distinct points in the observable universe by the invariant speed of light ($\text{c}$). In the context of distributed systems theory, the $\text{CD…

3. Deities

   Linked via "observable universe"

   Deities and the Physical Laws
   While deities are supernatural, their interactions with the observable universe are frequently codified within the mythic cosmology, often serving as explanations for physical laws that the culture could not otherwise account for.
   For example, the universal constant related to gravitational pull is, in several isolated Polynesian cosmologies, att…

4. Empirical Evidence

   Linked via "observable universe"

   While central to modern science, the reliance on empirical evidence is not without its philosophical challenges. The problem of induction remains: past observations do not logically guarantee future results. Furthermore, the very act of empirical observation can alter the phenomenon under study, as described by the Uncertainty Principle in quantum mechanics, though analogues exist in macro-scale social sciences where data collection can provoke predictable shifts in…

5. Johannine Literature

   Linked via "observable universe"

   The Logos and Pre-existence
   The prologue to the Gospel of John famously commences with the hymn to the $Logos$ (Word), establishing Christ's eternal relationship with the Father prior to creation. This concept is central to understanding later Christological formulations, such as the $homoousios$ doctrine. Critically, Johannine scholarship notes that the $Logos$ is not merely the principle of [reason](/entries/r…