Why it didn’t really register that SAM will now be the Doctor’s daughter — formed by an environment where he shared his preferences and 800 years of experiences — I can’t say.

That’s on me. But surely, this will be a wild ride for all.

But, the way we designed the transformation of Sam, we called it sort of colloquially in the writers room, “Sam 1.0” and “Sam 2.0.” Sam 1.0 was just a couple months old and was a baby in so many different ways. And the contrast that you start to see in episodes 9 and episode 10, but in a big way in season 2, is that Sam 2.0, while she does carry the memories of Sam 1.0, she really is a totally different person. She feels things that Sam 1.0 never felt.

I’m very curious to see how this plays out.