Some time ago, people used to know when they would die. Well, one person knew that he had to die that day or the day after, but it was time for him to build a new fence. He started building a fence from straw. God walked by. "What are you doing?" He asked.
"Building a fence."
"Why from straw?"
"Why not? I’m going to die anyway."
"SO you know when you’re going to die?" asked God.
"I know," said the man.
"W ell, you will no longer know."
And from that time on, people don’t know when they will die.