The missing Japanese

I stumbled on this blog of photos from Japan. I first I was in awe of how clean everything was. Then I noticed something even stranger, though perhaps related. There are absolutely no people in the pictures either. In Japan.

Weird.

where were they hiding?

Update: here is another part of the world with few people. Where are the people?, as my Cuban grandfather-in-law when he saw absolutely deserted looking American neighborhood he found himself in.