I found this at Amazon.co.uk. Using the title, "A great biblical analogy for Christ's existence in our world" a reader from Canada wrote, "Jesus' time in our world could be compared to the flatland story. What he was able to do in terms of miracles could be compared to what "A Sphere" was able to do in flatland. It makes a great story and an excellent analogy for understanding God and Christ for a mathematical mind."