  Yes, scientists make pragmatic decision about what to study, but I think that these decisions are anything but arbitrary. The power of molecular genetic approaches did not come easily, rather it is the result of a long history of strenuous research based on a vision that derived from the work of Richard Goldschmidt, Alfred Kühn, and Thomas Hunt Morgan early in the 20th Century. It is thus not intellectual laziness that drives the genetic research program; instead we are raking in the spoils of a hard-won victory over biological complexity. (Wagner 2004, p. 1405)