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<div>There is nothing in any of the CC licenses that requires that works be made available free of charge, either by the downstream user or by the original licensor. It is true that a CC license cannot be revoked, however the catch is you have to have a copy
of the work and proof of the license under which you obtained the work. There is nothing to stop the original licensor from changing their mind, taking down the CC-BY copy and replacing it with a work under whatever terms they like (or not making the work
available at all).</div>
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<div>This argument is basically that while CC-BY may appear to be highly desirable and reflect the BOAI definition of OA (which I now reject as the source of the problem), it is a weak license full of loopholes that could be the downfall of open access.</div>
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<div>best,</div>
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<div>Heather</div>
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On Apr 28, 2015, at 5:21 PM, "William Gunn" <<a href="mailto:william.gunn@gmail.com">william.gunn@gmail.com</a>> wrote:<br>
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<p dir="ltr">On Apr 26, 2015 2:08 PM, "Heather Morrison" <<a href="mailto:Heather.Morrison@uottawa.ca">Heather.Morrison@uottawa.ca</a>> wrote:<br>
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> There are arguments against CC-BY as a default that apply across all disciplines. The most important is the potential for downstream enclosure... A broad-based CC-BY success of the open access movement could easily and quickly revert to toll access on a massive
scale in the future (short, medium or long term).</p>
<p dir="ltr">I think I'm missing a key part of your argument. Can you explain how a CC-BY licensed work would revert to toll access?
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