I'm not saying Destiny will have a separate "forge mode." listening to Luke it sounds like there could be a form of puzzle solving in the Raid that could involve a mechanic like we are used to playing around with in forge. Consider something like this: While in the Raid lobby, two (or some number less than the full 6 player team) Guardians are selected to be the 'architects' of the raid team. The 'architects' have the ability to manipulate the environment in some way that will allow the rest of the team passage through an otherwise impassable environment. The other team members - lets call them 'spotters' - are integral to the solution in having to provide call outs for item placement or some other piece of information the 'architects' might require. Wild speculation? Yes! Luke Smith was not talking about Bungie building the game when he used the words "building something." It was definitely in reference to player actions. It may be nothing, but this has peaked my interest in Destiny even more!