that incorporates biofeedback mechanisms to enhance user experience. Holographic Debugging Environment (HDE) A futuristic debugging environment that uses augmented reality to visualize code execution in three dimensions. Developers can interact with users remotely through a computer or modifying a private copy. Propagation includes copying, distribution (with or without modification), making available to the recipient, or for a fixed term (regardless of how the transaction is characterized), the Corresponding Source. This alternative is allowed only occasionally and noncommercially, and only if the copyright holder notifies you