Scene Context: Maria explains that Les's left lung has been replaced with a reservoir, and some functions of his red blood cells have been taken over by nanorobots in his blood.
Essence of the Phenomenon: Today, two distinct scientific trajectories support this idea: porous materials like MOFs (Metal-Organic Frameworks) for oxygen storage, and artificial oxygen carriers based on hemoglobin or related systems. However, combining them into a compact implant capable of sustaining autonomous breathing for two days is an engineering extrapolation, not current medicine.
Theoretical Extrapolation: This model assumes that future medicine has successfully integrated long-term oxygen storage, controlled gas release, and artificial blood gas exchange enhancement into a single implantable complex.