One thing that stifles innovation is the fact that full copyright is the default when you create something, be it a game or something else.
On the other hand, you don't want to choose a free/open license for every little thingy you put on your website/blog/whatever.
And not many are comfortable with releasing an entire portfolio under CC0 or WTFPL. And sometimes you do want to choose a specific license
Wouldn't it be great if you could just say “You can use any content on this website/blog/... that does not have a specific license attached freely for private or open-source use. For anything else, full copyright conditions apply”?
We could have a standard boilerplate for such an “implicit license”, one that encourages sharing, but is overridable on a project-by-project basis.
A while ago, I tried to do just that, as you can read on my blog. I've also written a few follow-ups. You can find everything posted on that topic under the tag implict-license on Wordpress.com.
I hope to start some serious discussion about this, because this could help open up a ton of creative content or code for existing open-source projects. Do you feel the same way? Do you think it is impractical, impossible to execute, unlikely to spread? Please comment.