A stressed-out salaryman may unwind from his hectic futuristic lifestyle in the Japan of 2020, by time-travelling back a few centuries, and taking a virtual stroll through medieval Tokyo.
As he walks over arched wooden bridges, he will chat with the avatars of his real world friends, admire pollution-free views of Mount Fuji and perhaps do some cash-free souvenir shopping for a digital download of a woodblock print.
He will navigate through the city once called Edo from the comfort of his intelligent living room, wearing 3-D glasses and moving about by waving a super-networked mobile phone that is attached to his wrist like a watch.
"This is Nihonbashi in virtual Edo," an invisible tour guide will say in an upbeat if slightly tinny voice. "It's a virtual community that is popular worldwide. A lot of people have logged on today already!"
Welcome to the future as imagined by NTT DoCoMo, Japan's mobile telephone giant with 55 million subscribers, which has long been a leading force for innovation in the high-tech paradise that is Japan.
Its Shangri-La is the 'Future Station', located in a skyscraper 29 floors above Tokyo, where visitors are taken on guided tours of the company's mobile phone marvels, and treated to a glimpse of what's to come.
Such as the wearable phone of 2020 that DoCoMo envisions will be the user's constant companion, fitted with a small flip-out screen and capable of projecting images onto a wall or into thin air in the form of a hologram.