Rub it and find out . <| sep |> But that ' s not how humans learn . All of our learning is supervisedNot really . A baby starts by looking around and slowly classifying everything it sees and hears automatically into general colors , shapes , objects , that some things hurt , how to move , . Those things are done by unsupervised learning . Certain behavior is also learned by only observation . Once a period of unsupervised learning is done , supervised learning can begin , as in connecting words to things as the parent will keep showing examples and tell the word and later on teachers explaining . So techniques may obviously differ . Hardware limitations are a whole ' nother beast . Of course the hardware will be different . The hardware limitations is part of the discussion if intelligence is indeed a general principle , either each skill must be developed completely separate , or there are a few general principles that needs some combining , tweaking and tuning for good performance for each skill .