> We have shown that, within the boundaries of the arXiv corpus, there are no significant differences in aggregate between pre-prints and their corresponding fi

> We have shown that, within the boundaries of the arXiv corpus, there are no significant differences in aggregate between pre-prints and their corresponding final published versions. Considering that many articles were funded by public money, at least partially, knowing that pre-print and expensive peer-reviewed articles have almost the same content, I just praise arxiv and other initiatives.