The structural grain
RSI treats the Planck length as the smallest radius to which the medium can bend, the grain that makes energy come in clicks.
The Eternal Consonance is an unbroken continuum, yet RSI holds that its elasticity has a firm limit. There is a minimum radius to which the medium can be bent. Bend it more sharply and the 0.73 N tension violently snaps it back.
The theory identifies this minimum bending radius with the Planck length, an extremely small distance that standard physics also treats as a natural scale. In RSI it serves as the fundamental grain of the continuum.
This grain has a direct consequence. Energy cannot be divided smoothly and endlessly. It must travel from one structural grain to the next. That step-by-step passage is what the paper calls the mandatory quantum click of the universe. In this account, the graininess of quantum physics comes from a mechanical bending limit, not from space being made of separate pieces.
From the paper: Chapter III, The Structural Grain (The Planck Limit). Read the full section
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