QUOTE : Time is like a jigsaw puzzle," she said. "Imagine a giant box full of billions of pieces of millions of puzzles — that is the future. Beside it lies a huge board, partially filled with bits of the overall puzzle — that is the past. Those in the present reach blindly into the box of the future every time they have a decision to make, draw a piece of the puzzle out and slot it into place on the board. Once a piece has been added, it influences the final shape and design of the puzzle, and it's useless trying to fathom what the puzzle would have looked like if a different piece had been picked.