Thanks again for responding – I know it takes time and energy from you, and I’m gratified you find it worthwhile to engage. I appreciate your thoughtfulness and, yes, civility, although I hope I didn’t offend you or anything with my asides on physics (a territory I’m more than happy to concede to you).

I’m working on a full response – and I’ll let you know when I get it posted. (It may be a while yet, as I tend to write and rewrite and rewrite.) But I did want to comment just to say that I will be pondering and writing, and am grateful to have someone to challenge me and force me to consider things.