Sunset License Rationale Purpose First and foremost, this distribution license will be a license with a sunset provision, to limit the duration of time before bits of the work start to pass into the public domain. Secondly, it will be a simplified, informal copyleft license. The style being sought after is similar to the Unlicense, and if the length is significantly over that it's a bug. Reasoning The duration of copyright has been extended over and over again to the point that it's de facto perpetual. Copyright law has been famously subverted with the GPL to produce "copyleft" which has the purpose of keeping a work open rather than closed. The idea is to do something similar to subvert the time that a work remains under copyright protections. If done right the result should be that anyone wanting to use parts of a work under the rules of public domain will either have to use code many years out of date, or the work itself has stagnated to the point where nobody cares anyway. Combining this idea with minimalistic copyleft clauses should fill another hole in available licenses, as all current ones are exceedingly verbose and precise. Scope This is primarily conceived of as a software license. While the result may be applicable to other works, it may not be optimal for them. Software patents are not something that will be mentioned or considered. The position taken is that if software patents are a problem in your country, you should reform the law. Warranty disclaimers will also neither be mentioned nor considered. The position taken is that your software should do what you say it does, and that you should be responsible for what you release to the public. Again, if this is a problem in your country, you should reform the law. The focus is on the work actually released, not on spreading the license itself, so dynamic linking will not be considered to constitute making a derivative work. Waiving anti-circumvention laws should be redundant and unnecessary, as the license allows usage of the work for any purpose without restriction. The license is not an EULA. Acceptance is not required to make use of the licensed work. License License You may copy, distribute and use this rationale and accompanying license document verbatim for any purpose. Changing them is allowed so long as the license name is changed.