Scene Context: Les stands on military-grade prosthetics for the first time, sees telemetry directly in his field of vision, and learns to control menus with gestures.
Essence of the Phenomenon: Real science is already capable of interfacing prosthetics with the nervous system, restoring partial sensory feedback, and making an artificial limb feel much more natural to the brain. However, fully combat-ready legs with near-seamless integration, built-in telemetry, and instantaneous adaptation represent an advanced level of future engineering.
Current Limitations: Even the most advanced modern prosthetics do not become "native" in seconds. This process requires time, training, and the gradual rewiring of the brain's cortical body maps.