I started listening to Writing on the Wall: Social Media - The First 2000 Years by Tom Standage. It is a popular history of human communication beginning with ancient times until the present. It's been an interesting "read" because even though technology has changed, human nature has not. The following snippets are from memory since I don't have a written text in front of me. In Ancient Greece, the use of spoken language and subsequent memorization was the way information was transmitted and preserved. Then came the the new fangled idea of writing ideas permanently down on a scroll. Horrors! Plato decried this arguing that people would stop thinking if they could just look something up in a book rather than remembering it. Sound familiar? Graffiti in Ancient Rome was quite common and not considered vandalism. The specimens that have survived are from excavations in Pompeii and Herculaneum, which were preserved by the ash of Vesuvius. There is everything from ...