Berlin streets

Recently I have been thinking about the idea of the tons of information that we receive everyday. It is impossible to grasp everything and it is very hard to process. Most of it is unnecessary and some of it, which it is very relevant, it is not shown. What is the information that we really need to know and when is the right moment to display it ?

A good, and very beautiful example of showing information just when is the right time is the Berlin's street signage project. What was hidden behind the street signs? What is the history of the city that is being reveled through the name of streets? Every night, when the sun is hidden and it gets dark, a series of old street signs appear on the floor showing the history of the names of the streets, which reveal the history of the city itself. (permanent vs ephemeral)