Dr. Malcolm Kendrick posted on this topic to his blog today.
The article ends up refining the question, but not yet answering it.
It's not clear if he proposes to answer it on his blog, or is writing a book.
2016-12-24 Note: this Cureality thread now has two pages.
Here's a quick link to well down on Page 2.
Alternatively, you can just edit the URL in your browser's target dialog, changing
Hit Enter/Return or reload.
Links on the Cureality front page, to replies on any thread beyond Page 1, fail, and end up at the basenote.
For some reason, the front page Current Community Discussions links to Page 2 comments are looking for random high page numbers, like page 102 when I first made this basenote edit.