There is, in West Virginia, a 13,000-square-mile quiet zone where radio signals are not allowed. This is to prevent interference with sophisticated government radio telescope technology located in the area. Cell phones are not allowed, neither are most wireless computer operations. There are very few broadcast operations allowed. There are still pay phones in the area. Some people who believe they are sensitive to electromagnetic waves choose to live there. There is also a patrol to track down signals that violate the rules. I suppose when it comes to the Christian life, it might be good to develop a quiet zone where all interference can be removed and we can hear from God.