This photo was taken at a location I walk by at least twice a week. I leaned on to the wall a couple of times when I needed some rest. Yet I retain zero memory about what was in this place. I don't even remember if it was a house, apartment, or a shop.

It is not a special event. Nothing remains the same, especially in Taipei. But I still feel uncomfortable, or even a sense of guilt, when I see something that should have been familiar to me is gone (but do not remember what it was). It is like knowing one of the coworkers is gone but cannot remember his or her name.