Look Outside Your Window is NOT a "lost Slipknot album".

Look Outside Your Window IS Corey Taylor, Jim Root, Sid Wilson, and Shawn 'clown' Crahan, who in the downtime during recording sessions for Slipknot's 2008 album All Hope Is Gone, began to freely create songs for themselves, exploring new directions with no outside expectations.
Over the years, the existence of this project has seen coverage in outlets including Vice, Revolver, NME, Kerrang!, and countless others, and the fans have only grown louder in their demand to hear this album. Now over 15 years later, the fans will finally get to experience it for themselves.