Small changes in one part of a system might cause large changes in another part

Small changes in one part of a system might cause large changes in another part. The use of technologies and any limitations on their use are driven by individual or societal needs, desires, and values; by the findings of scientific research; and by differences in such factors as climate, natural resources, and economic conditions. Thus, technology use varies from region to region and over time. Scientific knowledge can describe the consequences of actions but does not necessarily prescribe the decisions that society takes.