It would be my luck to have a card to that library and all the books would be written in a language I couldn't read, but that is how it goes sometimes.
I don't envy you and the rest of the gang at HF, that is some tough work creating the future without being privy to some top secret information. Personally, I think that time travel is possible. I don't believe time is linear, I think that it moves much like how you see electrical current on a oscilloscope, with peaks and valleys, we just need to figure out how to jump from peak to peak or valley to valley. Straight lines don't really appear in nature and it would make sense that time doesn't follow a straight line as well, I'm pretty sure that it bends. I can't prove it, just my gut instinct telling me that.