there is an apocryphal story of a young student who asks his guru: mater, upon
what does the earth rest?
guru: upon the back of a great tortoise, my son.
student: but master, upon what does this great tortoise stand?
guru: upon the back of a still greater tortoise.
student: but master, upon what...
guru: this is an interesting line of questioning, my son, but
i can assure you, it is tortoises all the way down.
{8^D this is all great fun until we realize that we big bang fans have
a tortoise problem too...