> many more are not. True, but https://en.wikipedia.org/wiki/Sci-Hub https://en.wikipedia.org/wiki/Sci-Hub https://sci-hub.tw/ https://sci-hub.tw/ sad that

> many more are not. True, but https://en.wikipedia.org/wiki/Sci-Hub https://en.wikipedia.org/wiki/Sci-Hub https://sci-hub.tw/ https://sci-hub.tw/ sad that it needs to exist, but good that it does.