Since the 1990s, personal computers and cell phones have made fast inroads into the modern world. Without them, normal life would be almost impossible.

Times were when automobiles and television transformed not just lifestyles but cultures. These days PCs and cell phones are doing likewise.

First, PCs and cell phones have lessened people's propensity for reading. Television, once considered the root cause of this problem, did not make books and newspapers unnecessary. TV dramas based on novels did not reduce demand for the originals; in fact, they often boosted demand.