I have a feeling this discussion became too chaotic: about 90 posts in
October and about 30 in November, all interesting but too many of them
only loosely related to my original post.
I propose to close the thread. I hope some time in the future to prepare
a short summary (but first I would like to check some technical issues,
so it will take some time).
Thank you very much to all who contributed.
Best regards
Janusz
-- , Janusz S. Bien emeryt (emeritus) https://sites.google.com/view/jsbienReceived on Fri Nov 02 2018 - 12:34:37 CDT
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