word pattern matching between disciplines could definitely yield
   some fasctinating results. If you're looking up apples, a smart
   AI system should be able to link together facts and findings
   about the apple - nutritional science has the chemical breakdown
   of the apple, which can link to chemistry which has the
   properties of the elements and compounds which could lead to a
   medical database of the deficiency and excess of each of the
   chemicals on the human body... which mixes with hospital reports
   showing definiciencies and excesses of these compounds in the
   body... and it may develop a hypothesis that that "An Apple A
   Day keeps the Doctor Away'. "