Although best watched with 3D glasses, one can still get a feel for what director Keiichi Matsuda is trying to convey. He's implying that our future is filled with constant connection to information, which has both positive and negative consequences.
This video shows individuals roaming the city with the ability to customize their surroundings. Yet, in the same token, this ability seems to result in a complete loss of privacy (shown by every person's data looming around him or her).
"'The architecture of the contemporary city is no longer simply about the physical space of buildings and landscape,' says director Keiichi Matsuda. 'More and more it is about the synthetic spaces created by digital information that we collect, consume and organize; an immersive interface may become as much part of the world we inhabit as the buildings around us.'"