Physical metaphors for digital safety
Niel Mclean

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Even as internet use has grown exponentially, the hierarchy of metaphors that describe it has remained constant: The internet is most of all a mail pigeon, then a library, then an amusement park, then a shopping center.
Internet: The Mainstreaming of Online Life
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We were originally wary of shifting rapidly among different disciplines but found that the students had no dif´Čüculty with this at all - the need to teach one subject at a time may exist mostly in the mind of an older generation.
Spalter & van Dam (2008)
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