SPEED OF CAUSALITY
Maximum speed of causal influence in vacuum:
299,792,458 m/s

SECOND LAW OF THERMODYNAMICS
Total entropy of an isolated system never decreases.

CONSERVATION OF ENERGY
Energy cannot be created or destroyed, only transformed.

CONSERVATION OF LINEAR MOMENTUM
Total linear momentum of an isolated system remains constant.

CONSERVATION OF ANGULAR MOMENTUM
Total angular momentum of an isolated system remains constant.

CONSERVATION OF ELECTRIC CHARGE
Net electric charge of an isolated system remains constant.

HEISENBERG UNCERTAINTY PRINCIPLE
Δx · Δp ≥ ħ / 2

PAULI EXCLUSION PRINCIPLE
No two identical fermions can occupy the same quantum state simultaneously.

NO-CLONING THEOREM
An arbitrary unknown quantum state cannot be copied perfectly.

RELATIVISTIC CAUSALITY
No signal propagates outside the light cone.

MASS–ENERGY EQUIVALENCE
E = mc²

FINITE SIGNAL PROPAGATION
All physical interactions propagate at finite speed.

INVERSE-SQUARE LAW (GRAVITY)
Gravitational force ∝ 1/r² (classical regime).

INVERSE-SQUARE LAW (ELECTROMAGNETISM)
Electrostatic force ∝ 1/r² (classical regime).