Jon held the stone in his hand, and realized how powerful the stone was. He could change the world in every way possible. He could change anything about anyone who had ever existed, his family, his friends, anyone.
Jon could make himself the youngest of his family, or the oldest. He could be an animal or an inanimate object. He could make it so that Jon Smith never existed but someone else did.
Jon clenched the stone and said "I wish that all my wishes altered reality."
Then he began to use the stone again and said "I wish..."