:21:00
The idea of Copyleft is that
it's "Copyright" flipped over.
:21:05
And what we do is, we say,
:21:07
this software is copyrighted
:21:09
and we, the authors give you permission
to redistribute copies,
:21:15
we give you permission to change,
:21:17
we give you permission to add to it.
:21:19
But when you redistribute it,
:21:21
it has to be under these terms,
no more and no less.
:21:25
So that whoever gets it from you
:21:28
also gets the freedom to cooperate
with other people, if he wants to.
:21:35
And then, in this way everywhere the software goes,
:21:39
the freedom goes, too.
:21:41
And it becomes an inalienable right
:21:45
to cooperate with other people and form a community.
:21:48
[ And so, what is that? the license?
what was that... ]
:21:52
Well, Copyleft being a general idea,
:21:55
in order to use it, you have to have specific example.
:21:59
The specific example we use for
most GNU software packages
:22:03
is the GNU General Public License,
:22:07
a particular document in legalese
which accomplishes this job.
:22:12
A lot of other people use that same license,
for example,
:22:15
Linus Torvalds uses that license for Linux as well.
:22:21
Well, the license I use is the
GNU General Public License.
:22:25
That's the one Richard Stallman wrote.
:22:27
And I think it is really astounding contribution.
:22:32
Uh, it's one of the few software licenses
that was written
:22:37
from the standpoint of the community rather than
:22:41
from the standpoint of um, protecting a company
:22:46
or um, as is the case with MIT and BSD license
:22:53
performing the goals of
a government grant program.
:22:58
Uh, and the GPL is really unique in that.