All sorts of similar explanations could have been offered, and would have been, had not the empty tomb been accompanied by sightings of, and meetings with, Jesus himself. No: in order to explain historically how all the early Christians came to the belief they held, that Jesus had been raised, we have to say at least this: that the tomb was empty, except for some graveclothes, and that they really did see and talk with someone who gave every appearance of being a solidly physical Jesus, though a Jesus who was strangely changed, more strangely than they were able fully to describe.