What is Neo being bathed in when he wakes up and is being flushed down after taking the pill in the Matrix? Is it amniotic fluid?
While it is likely not specifically amniotic fluid, it serves to perform many of the same functions include waste management, cellular replacement and physical development The fluid is certainly sterile and filled with a variety of nutritional capacities.
The fluid maintains a temperature-controlled environment protecting the human body from extremes of heat or cold. It regulates the body temperature of the human inside as well especially during potential imbalances in the body's health status.
The fluid certainly aids in the physical development of the body internally and externally providing the capacity for cellular development, waste management, and stem cell application, in the same manner as amniotic fluid. This fluid is
It also allowed an environment for the human body to float in, preventing the formation of pressure ulcers or bedsores which can be dangerous to a Human in an immobile state.
The machine society had to have an extremely developed technology to be able to replicate both in terms of volume and capacity the amount of fluid needed to keep millions of humans alive and functioning.