Thanks. I'm aware of the policy but good policy always bears restating/reminding. I also appreciate the additional background. Having said that, the author onl

Thanks. I'm aware of the policy but good policy always bears restating/reminding. I also appreciate the additional background. Having said that, the author only posted the ToC and Intro, which meant it came off much more as trying to Show HN readership something to buy, rather than sharing any of his actual work with HN. Hence why I posted all of the prior attempts.