hi schraf:
Do you accept that the main expertise of a professional scientist regardless of their field of study is to generate explanations of natural phenomena and test (using various methods depending upon the field) the consequences of those explanations?
YES! (and I appreciate what you are trying to do with this thread...)
One aspect of scientific careers that might help Faith understand the point you are trying to make:
Many scientists make rather drastic jumps in the subject matter they are studying; in some fields, scientists are
expected to change their field of study as they move from undergrad to graduate to postdoctoral positions. To stay safely within one area of expertise throughout a career is essentially seen as a sign of weakness.
Also, a good scientist follows the research where it leads, even if into unknown territory for the scientist. I find this especially true among scientists who work with animal models - some are interested in a specific phenotype and only study that phenotype, even if other novel phenotypes arise as a result of their experiments. However, the better organismal biologists examine all of the interesting/informative phenotypes, not just the ones they expect - even if that means someone trained as a cancer biologist is suddenly doing behavioral research.
A good scientist can study just about anything, because the basic underpinnings of science are universal.