Ha-HA! ...Huh. Well. That explains a few things. But also actually makes Andrew a bit more likable. The Doctor's face goes through a range of subtle reactions, still trying to pretend like he knows what Handy is talking about.

"I don't know," he answers. "There might be many differences from universe to universe." He hesitates for a moment, sober. "Was it a two-way metacrisis for you?" he asks, not really looking at Handy the exposition pony.