Opened week 6

Understanding the importance and value of the public domain,
1. how much (what percentage) of this value would you estimate is realized when works are licensed with a Creative Commons or GFDL license?
2. To what degree would the open educational resources movement (and therefore the world) be additionally benefited if OERs were simply placed in the public domain? Please explain.

Well, I tried to understand the real reason behind that precise “what percentage”, as I first read the questions and was reading the papers and something more around this week’s topic.

The focus is clearly on the concept of public domain, and it results somehow limited by the CC license and GFDL license.
At the extremities is the © concept, which is opposite of public domain.
That’s the way I feel it after reading this week.
As much as I’ve read about CC and GFDL, I am tempted to say that if the public domain is 100% without ©, and © is 0% public domain, CC is in some degree (depending on the author’s decision) under 50% public domain or, better defined, over 60% ©ed (copyrighted); GFDL is more or less over the edge of 50% public domain, to some extent being it “free”.
An example of it wikipedia itself, which is based upon the GFDL license.
When I try to think about the implications related to question #2, I have different reaction.
a. My first instinct-driven answer is “totally!!!”. I mean: open resources for education, withour any constrain, without any problem or concern like “am I violating anyone’s copyright?”…
b. My second answer is to take the definition of public domain: “Public domain comprises the body of knowledge and innovation (especially creative works such as writing, art, music, and inventions) in relation to which no person or other legal entity can establish or maintain proprietary interests within a particular legal jurisdiction”
and “In contrast to copyright is “public domain.” A work in the public domain is one that can be freely used by anyone for any purpose.”
Well. I find that many “open courses” are not so that publicly at disposal, so open and accessible.
I try to explain what I think with a short story: it was a few years ago, I went to Washington DC and visited the National Museum: it was easy, you go in, you see what you want, and you go out.
No ticket (no cost) no inspection (no password) free and uncontrolled going around.
How many “open sources repositories” or similar (like lms/cms managed courses) are really in the public domain?
Too many sites (school sites, e.g.) are “open” at the surface, I mean public at first glance, and then you are required to get a password, for which you need an email address, get an answer, reply through a specific link…
c. my 3rd answer is: the OER movement would greatly benefit from OER 100% in the public domain, but it’s too far now to be realized.