Jeff,
Lovely essay, with much sense, I do like your direct readable writing style. I also broadly agree your 'threshold' definition of intelligence and described almost the same thing, with imaginary scenario's, responses and 'feedback loops' informing decisions.
You also point out some very pertinent facts; "There are many wrong physical models that work perfectly well mathematically" and; "a toaster oven with a goal and the ability to change could be intelligent." (as the toaster in the UK TV series Red Dwarf', which also consistently reverts to it's primary goal!)
Regarding; "The Heisenberg uncertainty principle Is a known unknown, a limit to our knowledge of a particle" So true, but you may have seen I do identify a valid classical derivation of that probability distribution! Of course that may not pass the cognitive dissonance test for some years (the 1st part of the essay shows why) but nobody has yet falsified it as it's a self apparent (if initially seeming complex) mechanism.
I'm sorry my essay is (again!) so dense, but I had a lot to get in to support the compound hypothesis. Yes it does need 2 reads. I find most good essays and papers do, though I do invariably 'speed read' first to decide if it's worthwhile. Yours was an exception, clear and spot on, so I slowed down and just read it once.
I see you've been trolled. Mine has just received it's 11th '1', just after it went up a couple of places! Rest assured your score from me will be a deserved good one to compensate, in fact going on now. There's some discussion on the admin blog as trolling can be easily eliminated.
I do hope your second read of mine will reveal the often subtle connections of how quantum interactions DO contain adequate information and options to drive a multi choice multi layer 'yes/no switch' feedback and decision system, even with a 'random' mutation mechanism!
Very best
Peter