Over the past week or so, the rumor of a mysterious “Brick” running around Cupertino has set forth a flurry of speculation throughout the blogosphere. Now, according to an unnamed “adamant” source, the mystery of the Brick has been revealed. A report from 9 to 5 Mac states that the Brick is actually an internal pet name of sorts, referring to the new manufacturing process Apple is using to build next-generation MacBook laptops. Huh? Bear with us. According to the post, Apple has finally build its own manufacturing plant and the new MacBooks will be the first production piece to come out of it. The “Brick” is indeed just that; it is reportedly a brick of solid aluminum that represents the beginning of the manufacturing process for the new MacBook cases. Apple then carves the case from the brick of aluminum using an automated laser-cutting technique and the end result is a lightweight but solid case. 9 to 5 Mac refers to the new manufacturing process as “totally revolutionary, a game changer. One of the biggest Apple innovations in a decade.” The truth is there’s nothing terribly revolutionary about carving things out of a block of aluminum – this is just a new use for a process that has existed for quite some time. Whatever the case may be, we hope the rumors are true and that some sturdy new lightweight aluminum MacBooks come our way on October 14 complete with some extra Nvidia juice as we’re now hearing.