In the beginning of Stephen Hawking's A Brief History of Time, he recounts the story of a scientist who gave a public lecture on astronomy. He described the basic orbits of the heavenly bodies in our solar system. After he finished lecture, an old woman disputed the truthfulness of his presentation, noting that the world rides, in actuality, on the back of a giant turtle. In response the scientist asked, "What is the tortoise standing on?" The old woman said, "You're very clever, young man, very clever, but it's turtles all the way down!"
And, here is the above-mentioned picture of me playing steel guitar today:
Turtles all the way down by are.kay.more