Entropy is traditionally viewed as a measure of uncertainty and disorder, but the Dynamic Entropy Model (DEM) proposes a new perspective.Shannon's entropy model is limited by static probability distributions, while DEM allows for dynamic evolution of entropy.DEM redefines entropy as a manipulable variable in AI, quantum systems, biology, and complex adaptive systems.In DEM, entropy is defined as a function of time, allowing for external control and manipulation.Dynamic probability evolution in open systems challenges the static nature of Shannon's entropy model.Entropy feedback control enables the regulation of entropy through external interventions in AI, robotics, and biological systems.Maxwell's Demon concept is realized as an entropy-aware feedback controller in DEM.Entropy engineering involves optimizing entropy for order and diversity in complex systems using control theory principles.DEM implications span AI, quantum computing, and complex systems, offering new possibilities for understanding and control.Moving beyond Shannon's static entropy model, DEM presents entropy as a dynamic and controllable force for mastering complex systems.