The 4th Rule of Motion: State Continuity

Rule 4: State Continuity

Each identity remains as much as it can always in the same state. It is never changed except by external causes.

This is the concept of inertia in Physics and state in quantum mechanics.

P_Δ = 1 - |⟨Ψ₀|U_ext|Ψ₀⟩|²

change operator: U_ext = e^{-(i/ℏ) ∫ H_ext dt}

This is taken from:

• Principia Philosophia Part 2 Article 37
• Principles of Cartesian Philosophy Part 2 Proposition 14

Rules 1 and 4 are related to each other just as Rule 2 and 3 are related.

We call:

• Rules 1 and 4 as feminine
• Rules 2 and 3 as masculine

From Descartes

We got these from Descartes’ Principia Philosophia which came before Newton’s Principia Mathematica.

Descartes only had 3 Laws. The No Void Rule came before the 3 Laws as Nature abhoring a vacuum. We found that adding it makes the rules of motion match the 4 properties of waves.