There needs to be an end to copyright on this historical material. If I was going to be very generous, I'd make copyright have a maximum of 50 years. Twenty is

There needs to be an end to copyright on this historical material. If I was going to be very generous, I'd make copyright have a maximum of 50 years. Twenty is probably more reasonable. It's ridiculous that Steamboat Willie is always going to be the cutoff between public domain and oblivion in dusty forgotten copyright hell.