Thanks for the support. It helps to have someone point out the same concepts I've been trying to explain, but with a different perspective.
Lest anyone think I don't read the literature I keep referencing: I do. Once you've read a few hundred scientific papers, you get a good feel for what is a good solid paper, and what isn't.
You're welcome. And thank you for all the information you've shared. I'm not a scientist myself--more of a science fan and occasionally a science writer. So I'm enjoying what I'm learning. I never knew that a challenge for experimenters with...was it bacteria?...is to keep them from evolving. That's pretty cool.