I watched the episode of the Universe last night Titled gravity.. Its a theory that has proven if you take a tunnel from one side of the earth say LA to Toyko would take 42 minutes no matter what the 2 points are the tunnel throught he earth would result in a 42 minutes of travel.. If ya can watch this episode or check it out I thought it was very intresting and it is one of the NUMBERS

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Please don't give up, Des. Because all we really need to survive is one person who truly loves us. And you have her. I will wait for
you. Always. I love you, Pen

DESMOND: I love you, Penny. I've always loved you. I'm so sorry. I love you!
PENNY: I love you too.
DESMOND: I don't know where I am, but--
PENNY: I'll find you, Des--
DESMOND: --I promise--
PENNY: --no matter what--
DESMOND: --I'll come back to you--
PENNY: --I won't give up--
BOTH: I promise. I love you.