In a world where machines can do many things as well as humans, one would like to hope there remain enclaves of human endeavour to which they simply cannot aspire.
Art, literature, poetry, music - surely a mere computer without world experience, moods, memories and downright human fallibility cannot create these.
Meet Aaron, a computer program that has been painting since the 1970s - big dramatic, colourful pieces that would not look out of place in a gallery.
Source: BBC News � By Jane Wakefield � Technology reporter