From October 24th to 29th, 1927, twenty-nine scientists gathered in Brussels for the fifth Solvay Conference. Among the attendees, of which seventeen got a Nobel Prize before or after attending, were Erwin Schrödinger, Wolfgang Pauli, Werner Heisenberg, Paul Dirac, Louis de Broglie, Max Born, Niels Bohr, Max Planck, Marie Curie, Hendrik Lorentz, and Albert Einstein. One might think there might have not been such an assembly of brilliant thinkers since the Platonic Academy.

Many developers will have heard of Barbara Liskov, through her appearance in Robert C. Martin's SOLID list of design principles. The abstract of her 1994 paper with Jeanette Wing, A Behavioral Notion of Subtyping, makes the principle sound easy in, well, in principle.

When the author of these words started its career as a software developer, "object orientation" was all the rage. "Serious" programming languages were object oriented. "Professional" programming environments allowed one to view "objects" and "classes" in all of their glory. Inheritance, not composition, was the way of the future. Design patterns names were the answer to actual interview questions.

The Kernighan and Ritchie book opens with the "Hello, World" example. The C++ Programming Language follows an annotated table of contents with "The purpose of a programming language is to help express ideas in code." Cox, on the other hand, opens with the story of Eli Whitney and the industrial revolution.