It's rather odd that the idea that the software business changes rapidly is still the conventional wisdom. After all most of the really big ideas were created by people of my generation and the one before (I'll be sixty shortly and I wrote my first programs in Leasco time sharing Basic in 1969 at the age of fourteen). I still see and hear people talking about object orientation as something new yet it wasn't new even in the late 1980s when Turbo Pascal got objects, after all Simula was released in the mid 1960s and had pretty much all the basics of objects and classes.
