The copyright of Micky mouse on Steamboat Willie has been expired on Jan 01, 2024. “Copyright”, this idea was meant to support the creator financially and encourage more people to create. However, too much emphasis on the copyright will also destroy the creation because of the similarities and lawsuits. “Copyleft” which encourage more people to freely share their inventions was proposed to function against copyright. Will you allow others to take use of your invention to invent more?