The WolframAlpha web site claims it is “Making the world’s knowledge computable.” It offers all sorts of analyses about people, surnames, first names, family relationship, old occupations, historical events, and even the value of a US dollar at various times throughout history. Have an ancestor who paid $200 for a farm? You can find the value of that farm expressed in today’s dollars.
WolframAlpha says that it “introduces a fundamentally new way to get knowledge and answers— not by searching the web, but by doing dynamic computations based on a vast collection of built-in data, algorithms, and methods.” It will not find information about individuals unless they are famous for some reason. However, it will provide a lot of facts that are useful to anyone researching a family tree.