Hypertextuality Human beings are unique among the creatures on earth. We are capable of language.
Language is simultaneously linear and non-linear.
When we speak we use strings of sounds called phonemes. It is linear also when we read, because we read in a straight line. Classical Chinese literature is read from top to bottom, right to left, Arabic is read across the page, right to left, and English is the opposite, but in each case the notion of linearity is noticeable. Such is not the case with the human mind. We do not think in linear patterns.