Homo sapiens' Adaptability is Our Greatest Adaptation

All tools are externalizations of originally integral functions. But in developing each tool man also extends the limits of its usefulness, since he can make bigger cups hold liquids too hot or chemically destructive for his hands. Tools do not introduce new principles but they greatly extend the range of conditions under which the discovered control principle may be effectively employed by man. There is nothing new in world technology's growth. It is only the vast increase of its effective r...