"In order to... it is necessary."

so that a person with paralyzed legs can go to the store, they need to lie in a sarcophagus, like in "Surrogates," and their doppelganger-biorobot will go to the store.

People are rightly asking: "How much longer?!"
An alternative: for a paralyzed person to stand up, you need to be God. Approach them and say: "Stand up and walk!!"