Import the reference manual from the old repo.
ispell-buffer
Testing some of the behavior of impossible distributions.
Making the reference manual more of a reference manual by answering
hitherto unanswered questions.
Explain the query language better.
distribution/determined? should not also refine the distribution.

Given that, distribution/refine-until! should signal the error it is
supposed to signal if the until predicate is not satisfiable.
A little more on the behavior of the impossible.
Touch up the explanations of the implicit language.
Come clean about the conditioning predicates possibly being over
hidden variables.
Do not exclude things that are not here.
Start the documentation entry point.