Treating ideas as property to be restricted and horded is necessary to some degree in the present world to make it possible to survive from a creative pursuit, but I reject the notion that ideas naturally should be a personal possession, rather than a cultural artifact. Even so, the terms of the system should be tuned to encourage the most and best creativity possible, and allow people to support their families, with some safeguard for death so the family can get back on their feet. Anything more than 10 years is ridiculous. If I die, 10 years living on my creative output is more than enough time for my family to find stability. The idea that a company could just own and horde that work for generations is absolutely disgusting, and completely against the spirit of the system.