JULIAN: What's inside a black hole?
SEAN: A singularity.
JULIAN: What's that?
Jen quietly listens in, as she does whenever Julian asks Sean science questions, so as to gain some insight, as the answer is given in such a way that a 6-year-old might understand.
SEAN: A tiny place that weighs a lot.
And that's sort of where it ended. We both still have a lot of questions.