Technological progress is a cumulative, evolutionary process. It rarely involves a eureka moment. A cursory review of technological development across industries and across countries shows that technological evolution has two main characteristics. The first is that technological advances depend on the scale of use. The second is that technological progress comes out of the actual production processes (Sahal 1981).
The scale-dependent characteristic of technological advances refers to the notion that the environment in which technology is used influences its long-term development.