physics says CICO has to be 'true in some sense', but it doesn't say CICO has to be any more useful than MIMO.
CICO is correct, to quote Yvain, in the best way -- it's technically correct.
As to being useful, as usual, it depends. I know you didn't find CICO useful, but lots of other people did. Your personal experience doesn't generalize well as you should know :-)
This is the public group rationality diary for November 1-15.
Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating.
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