Copyright was set up after the printing press made copying a matter of mass production, typically done commercially. Copyright was acceptable in that technological context because it functioned as an industrial regulation, not restricting readers or (later) music listeners.
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Today’s digital technology enables everyone to make and share copies. Record companies now seek to use copyright law to deny us the use of this technical advance. The law which was acceptable when it restricted only publishers is now an injustice because it forbids cooperation among citizens.
