Mere Christianity, Chapter 7 - Part 1

Lewis here addresses the complexity and unexpectedness of Christian
doctrines. He explains that they should be complex, that just as the
most obvious and simple thing - he uses the example of a table -
becomes infinitely complex on a close examination, that Christianity
would likewise appear simple from a distance but be infinitely
complex when observed closely. As for the unexpectedness, he argues
that nothing in nature fits what you'd expect, as evidenced by the
unequal size and distribution of the planets and moons in our solar
system. If reality tends to defy expectation and be notoriously
complex, then, we should take the fact that Christianity is also that
way as a positive sign.

Well, I couldn't disagree more. The complexity of atoms and light
particles reflecting off the table is a very simple way of
understanding what it is and what we see - I challenge anyone to come
up with a coherent physics that is simpler. After all, a major part
of what physics concerns itself with is coming up with simple and
elegant explanations for things we see. The fact that it is
unexpected simply means that it defies our assumptions about the way
the world should be.

Now Lewis has got himself in a pickle. At the beginning of the book,
he said that the fact that we have a sense of how should be, but
things are not that way is evidence of god. But here we have a
similar discrepancy between how things are and how they should be,
and this tells us that the 'how things should be' is wrong. Well, if
we can make bad assumptions about astronomy, then why can't we do the
same about human behavior?