Bruce nods, not even caring that Tony's probably not looking his way to see. "Yeah, these readings are incredible."

Looking up for the first time since they started, he's startled by the lack of visible change in the room. "Charlie," he asks, "what should we expect to happen, if we go much further? Is this a Johnny Storm type situation, or something else? Let's just... let's just say surprises would be best avoided." His smile is a pathetic attempt at light-heartedness, but he doesn't want the excitement of an experiment plus spontaneous human combustion, if it comes to that, to equal Big Green and a very bad day.