Copyrights last 75 years and that doesn't even START till after the creator is dead. Remember that copyrights are basically just an agreement between a business and the society it functions it. Society agrees that they will protect the business' product from reproduction JUST for the time that the business needs to make their money. In return, the business will continue to update the product and sell new ones. Astronomically long copyrights DO NOT meet this agreement. First of all, all products will go out of style eventually. People are attracted to new things, and businesses aren't encouraged to make new products, breaking their agreement. If businesses are basically forced make a new, updated or improved product before the copyright on the current product expires, then they will be selling more products, and thus they will make enough money to reimburse their losses and even more. Thus in the end the businesses will make more money long term if copyrights were short term, which will benefit everybody.