It was nice to have something to do that he could accomplish without having to swallow any new laws of reality, or attempt to figure out the impossible. Converting Jack's tree apartment into a massive freezer unit without damaging the structural integrity of the tree with the weight was logistically interesting, but with Tony's help, barely worth mentioning in comparison to what else he was working on. It was a pleasantly mundane diversion for Bruce, and between the two of them, they got it done fast. Not more than a week went by before he was messaging Jack and inviting him over.

He's waiting outside the door, patient and unperturbed to stand and have nothing to do as he waits. He runs through potential experiment set ups in his head. From the outside, there's already a major difference: a sleek metal door has replaced what used to be there, and the joints with the wall are seamless and heavy, not allowing a wisp of air to escape.