A little farfetched at times, and Sarah seemed like so many other heroines of popular stories (Katniss of the Hunger Games, Hermione of Harry Potter).
I wish that there was a little more diversity for her character, because she just seems to be there to be a supporting character (and not a very interesting or good one at that, eaither) until the end.
Speaking of which, the end was amazing! I wasn't expecting that, and the quote you used is one of my favorites.
Good job, and keep writing!

AND YE DIDNT NOTICE UNTIL MORNING!?

Great! its got that wow factor and is really well written

A really simple idea but it has that 'Oh, my goodness' quality when you realise what caused the catastrophe. Well written, too. Lets see some more like this please.

it's really nice!

I like it. I always love a far-fetched fantasy. I am mad that it ends on a cliffhanger though, but I will follow your works until my inner-book-hunger is satisfied. i gave it 4/5 because I feel that some of the elements are a bit too wack. No offense, I still love it, and the only part I didn't like was the ability to make a computer just with knowledge that they had. I have no problems with anything else, I feel that the fact that only them survived, and the dreams, are all just mysteries waiting to be solved. My inner theorist is waiting!