Critical String Length and Dynamic Evolution: Core Revelations of Natural Mechanisms and Formula Reproduction in Chen's Superstring Theory

Introduction: A Shift in Physics from "Phenomenological Description" to "Mechanistic Tracing"Traditional physics explanations for core phenomena such as quantization and fractal charge often rely on "ad hoc hypotheses" (e.g., Planck's energy quantum hypothesis) but struggle to answer "why nature chooses such rules." The breakthrough of Chen's superstring theory lies in revealing that these phenomena are not accidental but inevitable results of critical differentiation and dynamic evolution of string states at the Planck scale. Focusing on "critical string length," this paper systematically elaborates the self-organizing logic of natural mechanisms, how they are accurately reproduced through the dynamic string force formula, and ultimately completes the paradigmatic leap from "observing phenomena" to "deciphering natural algorithms" through cross-scale experimental verification.