It sounds superficially fair. But it presupposes that that there is something in Christian theology to be ignorant about. The entire thrust of my position is that Christian theology is a non-subject. It is empty. Vacuous. Devoid of coherence or content. I imagine that McGrath would join me in expressing disbelief in fairies, astrology and Thor's hammer. How would he respond if a fairyologist, astrologer or Viking accused him of ignorance of their respective subjects?

It is an essential part of the scientific enterprise to admit ignorance, even to exult in ignorance as a challenge to future conquests.

Presumably there is indeed no purpose in the ultimate fate of the cosmos, but do any of us really tie our life's hopes to the ultimate fate of the cosmos anyway? Of course we don't; not if we are sane. Our lives are ruled by all sorts of closer, warmer, human ambitions and perceptions.

The body is a survival machine programmed to propagate the genes that reside inside it.

Chaos theory, a more recent invention, is equally fertile ground for those with a bent for abusing sense. It is unfortunately named, for 'chaos' implies randomness. Chaos in the technical sense is not random at all. It is completely determined, but it depends hugely, in strangely hard-to-predict ways, on tiny differences in initial conditions.

If children were taught to question and think through their beliefs, instead of being taught the superior virtue of faith without question, it is a good bet that there would be no suicide bombers.

Suffering is a byproduct of evolution by natural selection, an inevitable consequence that may worry us in our more sympathetic moments but cannot be expected to worry a tiger - even if a tiger can be said to worry about anything at all - and certainly cannot be expected to worry its genes.