<div>Excellent question. I believe that the need to include the license itself in BSD and MIT licenses make them substantially different from the CC0 license. </div><div><br></div>Quoting from the MIT License,<div><br></div>
<div><pre style="font-family:monospace,'Courier New';padding-top:1em;padding-right:1em;padding-bottom:1em;padding-left:1em;border-top-width:1px;border-right-width:1px;border-bottom-width:1px;border-left-width:1px;border-top-style:dashed;border-right-style:dashed;border-bottom-style:dashed;border-left-style:dashed;border-top-color:rgb(47,111,171);border-right-color:rgb(47,111,171);border-bottom-color:rgb(47,111,171);border-left-color:rgb(47,111,171);background-color:rgb(255,255,255);line-height:1.3em;font-size:13px">
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
</pre><div>I find that this provision places restrictions or encumberances on the re-use of my software that I would rather not incur (or have future users/developers incur). There are two difficulties with such requirements.</div>
<div><br></div><div>First, I often distribute software packages with data. This is common practice for R packages, for example. It is unclear that the MIT license and its kin can apply to the data, which are statements of fact and not copyright-able material. </div>
<div><br></div><div>Second, such clauses place an additional burden on the reuse of the software. If someone wants to grab snippets of code I distribute (i.e. through github) and paste them into a pastebin or gist and send them around to all their friends/vistors/etc, they shouldn't have to worry about whether they've copied a "substantial portion" of the code and if they have to copy that license somewhere into their gist or blog or what not. In a similar vein, if someone has a machine script that copies and mixes or redistributes parts of my code for some reason, they likewise shouldn't have to worry about handling the licenses. </div>
<div><br></div><div>Cheers,</div><div><br></div><div>Carl</div><div><br></div><div><br></div><div><br></div><br><div class="gmail_quote">On Thu, Feb 2, 2012 at 12:51 PM, Rick Moen <span dir="ltr"><<a href="mailto:rick@linuxmafia.com">rick@linuxmafia.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">Quoting Carl Boettiger (<a href="mailto:cboettig@gmail.com">cboettig@gmail.com</a>):<br>
<br>
> I would like to submit the Creative Commons zero license for<br>
> consideration. I am new to this list, forgive me if it has already been<br>
> considered.<br>
<br>
</div>A number of times, actually, most recently last month.<br>
<br>
What practical problem do you consider this licence (in truth, a professed<br>
public domain declaration with a failsafe fallback to a simple<br>
permissive licence) to solve that is not already solved by MIT License<br>
or Fair License?<br>
<div class="im"><br>
> The scientific community is increasingly embracing this option as the most<br>
> open and compatible license. It is required by scientific data<br>
> repositories (that also archive scientific software, with cite-able DOIs)<br>
</div>> such as Dryad <<a href="http://datadryad.org/depositing#whycc0" target="_blank">http://datadryad.org/depositing#whycc0</a>>.<br>
<br>
Dryad's requirement of CCO is declared on that page to apply to<br>
submitted data files, not to associated 'software scripts and other<br>
files important to the article' submitted with them.<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Rick Moen "The four seasons are Spring, Summer, Winter and Fall.<br>
<a href="mailto:rick@linuxmafia.com">rick@linuxmafia.com</a> For California publications, change to Mudslide,<br>
McQ! (4x80) Hillfire, Flood, and Earthquake." -- FakeAPStylebook<br>
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</font></span></blockquote></div><br><br clear="all"><div><br></div>-- <br>Carl Boettiger<br>UC Davis<br><a href="http://www.carlboettiger.info/" target="_blank">http://www.carlboettiger.info/</a><br><br>
</div>