On 9 May 2019 Richard Stallman, founder of the Free Software Movement and the GNU operating system, gave a lecture at University of Copenhagen to members of DIKU Alumni. This film is an excerpt about the four types of Freedom taken from the entire talk on Computing, Freedom, and Privacy. Copyright: University of Copenhagen. CC BY
YOUTUBE 6F2-CHszENk Richard Stallman lectures at DIKU: Computing, Freedom, and Privacy