"Oo! Now what's this, then? I love this. Big flashy lighty thing. That's what brought me here. Big flashy lighty things have got me written all over them. Not actually. Give me time. And a crayon. Now! This big flashy lighty thing is connected to the spire on your dome, yeah? And it controls the sky. Well, technically it controls the clouds. Which technically aren't clouds at all. Well they're clouds of tiny particles of ice. Ice clouds! Love that! Who's she?" and he points at Abigail without even looking and the rest of his body follows afterwards, I just love that - he PHYSICALLY gets ahead of himself!

I have a theory that Moff has a similar thought process, which is why his episodes jump all over the place in terms of plot structure, but it all eventually forms this interconnected web that makes sense.