alt Hacker NewsKeeping in mind that I'm going strictly off the commit[0], a bit-packing layout is very much the kind of thing which is not subject to copyright in the first place. Neither are algorithms. Ideas, in general, are not subject to copyright: expression is.
So "lifting ideas from other engines", as you yourself put it, is entirely licit, no matter how you do it. _Should_ you credit others when so doing? I err on the side of yes, on that question. _Must_ you? No, there is no such requirement, this is not academic publishing. Does it constitute violation of license? Absolutely not. Straightforwardly, no. Furthermore, it _should not_, we would not like the result of that.
Think: SCO suing Linus Torvalds over his use of a.out: and winning. It would be bad. Even though I understand the reasons for it, it's still eerie to me to see hackers coming down hard on a side of an issue we spend decades passionately defending the other side of.
As I lead this post with: maybe there's something in the repo which is infringing, it's quite possible that commit doesn't tell the whole story. If so, keep in mind that I don't know that, and am able to change my opinion in the face of new evidence.
Based on what I _have_ seen, no: you do not get to lock down a bit-packing pattern just because you're the first to come up with it. Nor should you have that right.
[0]: https://github.com/adamtwiss/coda/commit/cd170a4ea9993cf8246...
Replies
No idea why you're getting downvoted. You're right.
> it's still eerie to me to see hackers coming down hard on a side of an issue we spend decades passionately defending the other side of
Yeah, it's surreal. It's not just intellectual property either, Hackers have already started complaining about automation now too.
Computers must have replaced tens of millions of jobs. It's the ultimate job destroyer, since it allows capital to do more with less. Automating me, a doctor, out of his job is essentially the holy grail of Hacker News.
But when hackers are automated away, then suddenly it's a crime against humanity.
You'll notice I didn't mention copyright, and that's because I don't think it's relevant. I think your analysis is correct. Keep in mind too that Stockfish – the engine I work on, although I wasn't at the time – was the subject of a high-profile defense of the GPL in Germany: https://stockfishchess.org/blog/2021/our-lawsuit-against-che.... That case was different as it involved wholesale copying of the source code, rather than porting ideas. Ideas shouldn't be copyrightable.
But copyright and plagiarism are orthogonal, and questions of morality are much more tied to the latter. It would be illegal (in the United States) for me to publish a copy of Nineteen Eighty-Four, but not immoral. It was not immoral, in my view, for Aaron Swartz to try to liberate JSTor articles.
That doesn't make plagiarism acceptable, either. And therefore, I'm willing to call it out when I see it.