Options may become polarized and extreme. Creative or moderate options are lacking. Sometimes parties purposefully narrow options by making irrevocable commitments. Such shows of commitment are intended to make the other side back down, but can escalate situations when the other side uses a similar strategy. As a crisis intensifies, each of these elements also intensifies.
Time runs out.
The stakes go up and this increases uncertainty. Options become further polarized in the face of increasing uncertainty and not enough time to deliberate effectively. These factors also contribute to a growing sense of hostility. However, many are the result of intentional pursuit of other interests. Where interests are important, people are often willing to risk precipitating a crisis.