I have a feeling that the entire end sequence was all just David.
That being said, my fiance bounced off this hard. And, it was an interesting choice for a pilot/premiere to be as confusing as that was. It was really hard to follow. I really enjoyed the casting and the direction. I love Dan Stevens as an actor, and I am all in. But, the flashback stuff and fluid timeline stuff, the period setting (or not?) was all very confusing for someone not already invested enough to want to watch more.
And.. a nearly 90 minute intro episode was a lot to sit down for, for a new show. I feel like this could have easily been cut to 45 minutes or so. Probably a tad too indulgent in the flashback/childhood memories stuff.
So, TLDR, I guess I am watching this one on my own.