Lustiger and Sirat are not circles and squares. The question must be resolved on the basis of faith. Did both men know God? Were they equally conversant with Him, the Living God? Or is all this just a rhetorical farce? It would appear that the archbishop has the edge, since he "realized his Judaism by being a devout Christian." It is definitely not geometry. People do not argue over Thales or Pythagoras. But they do argue abut Jesus! That is Rabbi Sirat's problem and NOT his friend Lustiger. Let's get thinking, folks!!
from the article: 'He'd say kaddish for his mother'