Michael Crichton said this quote

“ Straight linearity, which we have come to take for granted in everything from physics to fiction, simply does not exist. Linearity is an artificial way of viewing the world. Real life isn't a series of interconnected events occurring one after another like beads strung on a necklace. Life is actually a series of encounters in which one event may change those that follow in a wholly unpredictable, even devastating way. That's a deep truth about the structure of our universe. But, for some reason, we insist behaving as if it were not true. ”