It is the Christmas season and, appropriately, a time for giving gifts. After all, as the Bible tells us, the new-born Jesus received gifts from the wise men.
The story is told of a man who enjoyed buying unusual and exotic presents to give to family members. One year this man found a gift for his father that was truly unique: a talking bird that knew words in five languages and sing “The Yellow Rose of Texas” standing on one foot. So, at great expense, he purchased the bird and had it sent by courier to his father for Christmas. A few days later, the man visited his father to see if he was enjoying his unusual gift. He knocked on the door and said, “Dad, did you get my present?” “I sure did.” “How’d you like it?” The father answered, “It was delicious!”
Thought experiments have been important in quantum physics, think of Schrödinger’s cat. I have a thought experiment for you. Imagination and an ability to visualise will help. Can you see your Christmas tree or wherever you put your presents? You notice that there is an unexpected gift. It is wrapped in gold paper and has an elegant ribbon tied into a bow ? just waiting to be un-wrapped. There is a card attached and you are delighted to find that the unexpected gift is for you. It has your full name on it, and even more surprising the gift is from God!
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