Cybersex has become popular because people are able to communicate without the face to face contact but they know that there is a human on the other end. Emotions are an enormous part of work and human interaction. If we didn't have daily human contact people by instinct would become withdrawn and secluded. Seclusion leads to thoughts of rejection and depression, possible harm and human chaos. Clifford Stoll, author of Silicon Snake Oil, questions the nature of the interaction between people and computers.
Sensation has no substitute.
If the world was run by computers it would never be able to end the feuds between, Hindus and Muslims, Serbs and Croate, Arabs and Jews and the list goes on. Computers could not end the struggle over ancestral land. No computer intelligence can resolve these disputes amicably. Computers also have no way of solving moral controversies that stem from different views of how we should lead our lives. The list can go on forever.