In the scene with the hunter-seeker, just before it enters the room, the videobook narrator said something that left me wondering. Or rather, I'm not sure if I heard it right.
First the narrator mentions that sandworms can grow up to 400 meters in length.
Then, as the narrator is talking about what grows on Arrakis, I think he says the roots of some bush or another can reach 135 feet underground.
1) Can anyone confirm that the narrator really uses both meters and feet in that scene?
2) If yes, is there an in-universe reason for him to mix the two up or was this a blooper?