There are five possibilities. One: Adam fell. Two: he was pushed. Three: he jumped. Four: he only looked over the edge, and one look silenced him. Five: nothing worth mentioning happened to Adam. The first, that he fell, is too simple. The fourth, fear, we have tried and found useless. The fifth, nothing happened, is dull. The choice is between: he jumped or was pushed. And the difference between these is only an issue of whether the demons work from the inside out or from the outside in: the one theological question.