bye-bye blackboard

Einstein / Oxford / 1931

Blackboards were wiped after use: they were meant for immediate communication, not for record. Even as they were being used, their messages were continuously revised, erased and renewed.

I still remember when I was studying at high school, I copied down everything which teachers wrote on blackboard. It's more like a text book rather than "communication tool". There were only 2 occasions I would touch a blackbroad, one was answering questions which teachers wrote on the blackboard, the other was erasing and cleaning it after a class.
However, blackboard represent a professional image to people. When people see a photo of a person stand in front of a blackboard, it naturally presents the person as a academician or scholar.
It is because people tend to use objects to symbolize or express who they are, or we create a stereotype in our mind?

How about a criminal standing in front of a blackboard?


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