“The first two rules of the “clean code” concept wipe out 12 years of hardware evolution, all by themselves.”
Polymorphic shape classes take about 35 cycles per area calculation. A switch statement takes 24. One table lookup and a single line of code takes 3.0 to 3.5. Add one more shape property and the gap grows to 15x. Muratori wants the advice to come with an asterisk, and the asterisk is a decade of CPU progress.