Every possible phoneme in any of the world's languages might in this way be generated by specifying a particular on/off configuration of the switches ('articulators') constituting the human vocal apparatus. This approach became celebrated as 'distinctive features' theory, in large part credited to the Russian linguist and polymath Roman Jakobson. The basic idea was that every phoneme in every natural language could in principle be reduced to its irreducible atomic components—a set of 'on' or 'off' choices ('distinctive features') allowed by the design of a digital apparatus consisting of the human tongue, soft palate, lips, larynx and so forth.