Interesting update. Luke doubts himself a lot, in my opinion, it can't go on like this for long, so he needs to either talk to his girlfriend or reflect and decide what he wants. As I understand it, he will become more confident as the story progresses, right?
There are still questions about the whole business with the company, Olivia and Jacob... What role will they play in history? A dramatic confrontation? How will this affect the main character? As far as I can tell, so far, it both facilitates and complicates the development of key characters.