If you could read a book containing all that has happened and will ever happen in your life, would you? If you choose to read it, you must read it cover to cover.
I have to say that it would be oh so tempting. But ultimately I would have to say no I wouldn’t read it.
I’m assuming that if you read your book then you would be able to influence or change parts that you didn’t like. And that would create ripples that would affect the outcome of the rest of the book.
A little error here would multiply in sixty million years, all out of proportion. Of course maybe our theory is wrong. Maybe Time can’t be changed by us. Or maybe it can be changed only in little subtle ways. A dead mouse here makes an insect imbalance there, a population disproportion later, a bad harvest further on, a depression, mass starvation, and finally, a change in social temperament in far-flung countries. Something much more subtle, like that. Perhaps only a soft breath, a whisper, a hair, pollen on the air, such a slight, slight change that unless you looked close you wouldn’t see it. Who knows? Who really can say he knows? We don’t know. We’re guessing. But until we do know for certain whether our messing around in Time can make a big roar or a little rustle in history, we’re being careful.
Ray Bradbury – A Sound of Thunder
And who would want to lose that mystery? That thrill of discovery each and every day. Not I.