Bias In The News
Over the past few decades, psychology has taken great strides towards becoming a real, hard science instead of an "observational science" like history. Cognitive psychology has helped lead the way, since it has been lucky enough to be able to measure things like response times to stimuli for a long time now, but it has proven more difficult to test theories of how minds work on the lowest level.
Enter computer science and the field of machine learning, able to implement certain theories of mind and see how they perform under controlled conditions. As you've probably noticed, they have not created a completely artificial human intelligence. But they have been able to learn a lot of things, and equally important, unlearn a lot of things, and disprove a number of theories.