The macroscope's clear view across space also makes it an ideal communications system for intelligent races, who broadcast signals by generating macrons, a technique not yet understood on Earth. However, over-riding all of these signals is another of enormous power, one of such strength that it must have been constructed by a Type II civilization. This signal repeats itself, starting with instructions on basic math and progressing to ever-more complex information. Viewers with high enough intelligence, an IQ of 150, reach a point where the information causes them to go insane or die. Those without the intelligence to understand the advanced portions of the signal are unaffected. The signal appears to be a deliberate attempt to "jam" macroscopic communications, blocking those with the ability to understand the other signals from being able to see them. They refer to the blocking signal simply as the "destroyer".