Once an apparent anomaly (broadly defined) is found in the data, Jonny Pseudoscientist will then tend to commit a pair of logical fallacies. First, he confuses unexplained with unexplainable. This leads him to prematurely declare something a true anomaly without first exhaustively trying to explain it with conventional means. Second, he uses the argument from ignorance, saying that because the anomaly cannot be explained, his specific pet theory must be true.