I think a bit of the character teleportation could have been saved with a 1-2 minute scene of warging Bran watching the action unfold beyond the wall and then having HIM send word to Dragonstone via raven. I mean if you're going to strain credulity here with the distances, why bother using the character with literal…

"but it does dispel at least one theory I heard having to do with Bran being marked by the white walker and coming up against the spells on the wall to keep the white walkers out."

Also, anyone notice Charlotte's offhand "thanks to the lack of foresight by one of my predecessors 35 years ago" comment….chalk another one up to the TIMELINE THEORY

I'm wondering if Ford has ever interacted with a human one-on-one to this point, without a robot around? Thinking of the times when he's alone: Bernard, Dolores, kid robot & fam, creepy old model robot in the basement. But anytime he's with a human: Theresa, ed harris… there's always other robots around.