In a recent book, ‘Machines with a Purpose’, many of the unattractive features of our technology were traced to a view of the world which has predominated in science for nearly four hundred years. This is, that nature, and everything that it contains, operates causally and without purpose. To counter this view, an alternative, purposive view was developed. The paper gives a simple account of this development, of other related work, and of the underlying motivation.

In the paper, three propositions are put forward. First, that intellectual structures of wide scope commonly lead to conclusions which are ethically unacceptable; secondly that the ethically unacceptable consequences of science arise from one particular presupposition which it adopts, namely that of causality; thirdly, that causality is no essential part of science.