ABSTRACT

They are ultimately connected by processes of cause and effect Those processes tend to be unpredictable both in relation to their direction, and

according to context and time-span.

To put this simply, what we think makes a difference to what really happens in our environment, but it does so in ways which are very hard to predict. Long-term consequences are swamped by short-term variations in the many parameters involved, and by other, sometimes unexpected, long-term effects.