Copyleft Concept

We are all familiar with the term "copyright" which means the exclusive right to make copies, license, and otherwise exploit something, whether it be an operating system or a musical piece. However, "copyleft" is a term that was used by the producers of GNU/Linux as a way to describe the freedoms of the open source operating system they were attempting to build. The term, undoubtedly means exactly what you would think it to mean. The producers give anyone freedom to change it and distribute it. The only specification is that if you choose to distribute it, it must be in some type of form so that the next person that uses it also has their freedoms to alter the system. The whole concept behind open source software and "copyleft" is that any user should be able to modify it to meet their needs. Open source has the capability to make the world a better, more connected place. Sharing these ideas and modified operating systems among one another is the key to progress as a whole in society. Copyleft is a more productive and community beneficial concept to put behind software, rather than a copyright to restrict people.