Scale Isolation: Applicable Scales of Physical Laws with Continuous Gradient Transition

Scale Isolation: Applicable Scales of Physical Laws with Continuous Gradient Transition The cosmic scale is continuous, gradual, and boundary-free. Define characteristic scale L and three transition centers: • L₁: ultra-micro ↔ micro transition center • L₂: micro ↔ macro transition center • L₃: macro ↔ cosmic transition center The applicability weight of physical laws varies smoothly and continuously with scale, using the Sigmoid smooth transition function to ensure no discontinuity, differentiability, and physical self-consistency.