Various human activities are transfered to computer simulator-generated acitivites, leading to a loss of body coordination and thus possibly to body mono-culture.
When the simulation rendered by the computer can be accepted as real it can be used as reference in assessing other simulations. Bodily experience thus becomes body memory.
The remaining bodily senses and capabilities are superfluous with regards to the computer interface. These are parts of the sensory range that are amputed by the interface.
 
"Bill Buxton once remarked that archaeologists from Mars, visiting the earth with everything destroyed but a computer company, will think humans were one-eyed beings with one hand and 29 fingers." (Simon Penny)