Ben, I don't recall anyone displaying blind reverence for divine forces or mysticism or worshipping the god Darwin and making offerings to his altar in "Dear Doctor." I saw two men struggling with their values and with science, and finally making a choice, even though the choice was impossible. There was no easy answer, no way to tie the ends up neatly with a pretty bow. That was the point. And it worked just fine for me. So what if the elk (and their faulty mating instincts) are preserved due to our good-intentioned "intervention," but as a result, some other species dies out because there are so many elk around? No one knows the future, and you can't predict mutations and their consequences. And with intelligent species such as the Valakians, you can't know what they are capable of accomplishing with time or research or determination. I'm still not seeing a catch-all solution for this kind of dilemma. What about "Assignment: Earth"? Our gallant Enterprise crew went back to 1968 and tried to keep humans from destroying themselves. Or "City on the Edge of Forever"? Hitler destroyed Earth, but our heroes went back to keep the species from wiping itself out. In TOS, the Prime Directive seemed to be something that sounded noble and sensible, but which Kirk blew off whenever he thought his POV was wiser than that pesky old PD. TNG was probably much more anal about it because of the way Kirk didn't take it seriously when he didn't want to. "Dear Doctor" was a great character study for me because it looked at a PD situation before there was any PD to toss away when convenient, and Archer had to figure out what to do on his own.