Is Japan providing a glimpse of all our futures? Many of the shifts there are occurring in other advanced nations, too. Across urban Asia, Europe and America, people are marrying later or not at all, birth rates are falling, single-occupant households are on the rise and, in countries where economic recession is worst, young people are living at home. But demographer Nicholas Eberstadt argues that a distinctive set of factors is accelerating these trends in Japan. These factors include the lack of a religious authority that ordains marriage and family, the country's precarious earthquake-prone ecology that engenders feelings of futility, and the high cost of living and raising children.

"Gradually but relentlessly, Japan is evolving into a type of society whose contours and workings have only been contemplated in science fiction," Eberstadt wrote last year. With a vast army of older people and an ever-dwindling younger generation, Japan may become a "pioneer people" where individuals who never marry exist in significant numbers, he said.

Japanese-American author Roland Kelts, who writes about Japan's youth, says it's inevitable that the future of Japanese relationships will be largely technology driven. "Japan has developed incredibly sophisticated virtual worlds and online communication systems. Its smart phone apps are the world's most imaginative." Kelts says the need to escape into private, virtual worlds in Japan stems from the fact that it's an overcrowded nation with limited physical space. But he also believes the rest of the world is not far behind.

Sensational delusion