Originally Posted by blah
Now that I think about it, do you think that the element that Tony created in IM2 was an artificial Cosmic Cube? His dad was last seen in Captain America finding the Cube. I'm guessing that he spent his life studying it, failing to replicate its power, only to entrust his son to finding the solution with the clues he left for him.
There's another guy on CBM (unless you're him hehe) that speculates the same thing. I think that would be crazy awesome if true, talk about fridge brilliance.