So then the instructions are not patentable (but copyrightable), while the instructions + a machine is patentable. And guess what, this is *exactly* how software patents work in many parts of Europe, the patent claims are made for the combination of some set of instructions and a machine (e.g. a general purpose computer).
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds