Foreshadowing in the Outlander chapter
For Bree and Roger, this discussion certainly make some sense. Two people who can time travel are going to have these thoughts, especially those with a scientific mind. For us as readers, I don’t think this is all that important unless it’s foreshadowing something to come.
Does it foreshadow a discussion of people moving from the past to the future? After all, we know that those from the past can end up in a future time period and not everyone goes back in time. Just look at Buck MacKenzie.
I get the sense that this chapter is foreshadowing something to come in the next book.
Adapting the Go Tell the Bees That I Am Gone chapter
The TV series hasn’t really delved into the details of how and why time travel happens. We just know that it does and gemstones are involved. I think that’s all that’s needed when it comes to explaining how something happens. Too much sci-fi can get bogged down with explaining things like this.
So, with that in mind, I don’t think we’ll really get into this chapter in Outlander. If it ends up being some big important element to the story in the final arc, then sure. However, I don’t see how it could end up being so major that it has to be brought up.
I think back to the saying “keep it simple, stupid.” That applies to this sort of explanation in fiction. It’s not always needed.