Jacob walks out into a cathedral-sized area inside the cave, lit again with the greenlight. When he is near to us, his head hits the ceiling. When he is far away, his head is closer to his feet, which are on the floor. What is the reason for this distortion? No matter what the cause, it appears that they walls of the cave are at a definite distance, even though the folds of the lost walls twist and hide themselves in small shadowed darknesses.