[sandworm101]

Substantial literary expression is old law, written when software was poorly understood by courts. Proceedures are now regularly copyrightable. They will find expression somewhere, even in a typo or apparant error (see the old phonebook and map cases). While one can pull and copy the facts, verbatum copying of every minutia is very dangerous.

Remember that a recipe isn't just an instruction set for making food. For purposes of copyright it is also letters on a page generated by a person.