Long ago, in a kingdom far-far away..
There was this guy who was going to be executed. The reasons aren't important.
Before being executed, he says 'I would like to speak to the king, I have important news for him.'
So, they take him to the king and the king asks him what is this important news.
He says 'King, give me one year and I will teach your horse to fly.'
The king is intrigued and gives him one year's time.
The prisoner's buddy asks him 'Hey, you have no clue how to make a horse fly, why did you tell him that?'
The prisoner says 'Friend, many things can happen in a year. I might die, the king might die, and for all you know, the horse might fly!'.