It depends on the type of work. The proper length of copyright for books or films should long, about 20 to 25 years, because they remain relevant for longer. But software should be shorter, about 7 years.
The purpose of copyright is to enhance the public domain, not to create a business model. How well is 75 year old software enhancing the public domain? If any software has even entered the public domain through copyright expiration, what use is that software today? At best it’s an archeological curiosity, but more likely it’s no use at all.
It depends on the type of work. The proper length of copyright for books or films should long, about 20 to 25 years, because they remain relevant for longer. But software should be shorter, about 7 years.
The purpose of copyright is to enhance the public domain, not to create a business model. How well is 75 year old software enhancing the public domain? If any software has even entered the public domain through copyright expiration, what use is that software today? At best it’s an archeological curiosity, but more likely it’s no use at all.
Software should fall in the patent realm exclusively, and on a shorter version specifically.