Can I set an expiration date on works I publish?
<p>I think the current "death + 70 years" expiration is absurd, and I doubt that by then any work I publish will be culturally relevant, much less marketable.</p>

<p>Suppose I publish a book or blog post today, and I choose the Creative Commons BY-SA 4.0 International license.</p>

<p><b>Is there any way I can say "I dedicate this to the public domain in X years"? Furthermore, is it possible to specify X years after I die?</b></p>

<p>There is generally nothing stopping you having multiple licenses, so you could publish the book with a regular license AND additionally noting that that as from date X the recipients can use an alternative license.</p>

<p>Similarly there is nothing specifying that you can't put it into the public domain X years after you dye, provided, I imagine, that this is less restrictive then the laws in effect at the time.</p>

<p>If you choose <a href="https://creativecommons.org/licenses/by-sa/4.0/" rel="nofollow">Creative Commons By-SA 4.0</a>, I can't see what you would gain  - this license already allows you to copy, redistribute and adapt to the content NOW.</p>

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