Straight lines, in as much as they can be said to exist at all, do so as the limit case of curves, which constitute all the lines in nature (even space and the paths travelled in it are curved). Linearity is the limit case of nonlinearity, and can be approximated only by taking ever narrower views of an infinitely complex picture. The discontinuous, in as much as it can be said to exist at all, is the limit case of the continuous, which is the norm. Total independence is an imaginary construct, the limit case of interdependence, which is universal.
