admission. Take as a simple example a court of law. Almost all rules for the presentation of evidence and for the conduct of those who participate in a trial are designed to limit the amount of information that is allowed entry into the system. In our system, a judge disallows “hearsay” or personal opinion as evidence except under strictly controlled circumstances, spectators are forbidden to express their feelings, a defendant’s previous convictions may not be mentioned, juries are not allowed to hear arguments over the admissibility of evidence—these are instances of information control.

