$ eldr --open case-file-fifty-years-of-a-deck-of-cards
$ eldr --cite eno-1975
In 1975 Brian Eno and Peter Schmidt printed a box of cards, each carrying one instruction. "Honour thy error as a hidden intention." "Use an old idea." "Work at a different speed." You draw one when you are stuck and you do what it says.
Fifty years later it is still in print, still on the desks of producers and architects and software engineers who would walk out of a room if you described it as anything other than a tool. No belief system was ever attached to it. Nobody has to think the cards know anything, because they obviously do not, and the absence of that claim is the reason the thing survived.
That is the precedent worth studying here, and it is more instructive than any amount of market research.
The value of an external instruction comes from the constraint, not from the content — and a man who accepts that sentence has already accepted the mechanism this product runs on.
The cards contain no information about your specific problem. They cannot. What they do is remove one degree of freedom, and removing a degree of freedom is what breaks a loop: with "work at a different speed" imposed, you can no longer keep re-running the comparison you have been re-running, because the comparison has been ruled out of the search space.
Most of the library is open. The material that names costs and patterns directly sits with the instrument that uses it.
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