Fear + Confusion + Hope = Life?

This is a very, very small post. I always wonder if uncertainty is bad, possibly the worst feature of life, or may be a bug in life. But uncertainty is not something new that we tend to experience recently. Since the earliest times, uncertainty has been part of life. Thinking out loud, waking up next morning is as uncertain as the weather. Fear The Earth has gone through several extinctions before taking its current form.