C. S. Lewis handwaved he just knows myth when he sees it, and he doesn't see it in Christianity. Sorry, Clive, but we need a more solid grounding of reality.

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The influence of C. S. Lewis on modern Christians in the West is hard to overestimate. Few stories of apologists coming to faith don’t include a mention of Lewis’s Mere Christianity.

Lewis was a student of Norse, Greek, and Irish mythology since his youth. He knew mythology and, he felt, he knew reality by contrast. Here’s his critique of the overall feel of Christianity as he compares it to the two possibilities, myth and reality.

Reality, in fact, is usually something you could not have guessed. That is one of the reasons I believe Christianity. It is a religion you could not have guessed. If it offered us just the kind of universe we had always expected, I should feel we were making it up. But, in fact, it is not the sort of thing anyone would have made up. It has just that queer twist about it that real things have. So let us leave behind all these boys’ philosophies—these over simple answers. The problem is not simple and the answer is not going to be simple either.

It is wholly believable because it is absurd.

third-century church father Tertullian, commenting on the resurrection (disputed)

Simple as a test for religion

If Christianity “offers us a universe” we don’t expect, doesn’t that mean that this new godly universe isn’t what we observe? (h/t commenter Raging Bee)

Lewis says that simplicity isn’t what we should expect in Christianity: “It is no good asking for a simple religion. After all, real things are not simple.”

While it’s true that natural things are often messy and complicated, a supernatural God could resolve, clearly and unambiguously, the big issues Christians fight over in a single page.

Christianity has much to be confused about. Look at the long list of Christian heresies about the nature of Jesus, the role of Mary, and so on. These have been resolved by mandate and tradition, not by objective evidence. Look at modern debates over morality (same-sex marriage, abortion, euthanasia, and so on). Look at the second coming, the Trinity, justification for God’s abominable actions in the Old Testament, and other murky issues. Look at the 45,000 denominations of Christianity that exist today. Let me know when Christianity gets its act together. Until then I won’t believe that the Bible looks like the product of an omniscient mind.

No, complex is just what made-up religions look like. Religions, especially the old ones, are usually quite complicated. Simple is a reasonable thing to ask for.

And shouldn’t Lewis, as an expert in mythology, admit to the Ancient Near East mythology that the Old Testament authors drew upon for their stories, like the Garden of Eden or the Flood?

See also: The Argument from Simplicity

Queer? That can be tested, too.

Let’s return to the more interesting point. Lewis said, “[Christianity] has just that queer twist about it that real things have.” It’s an instinctive reaction, so let’s label this argument Lewis’s Appeal to the Gut. Christianity just feels like reality rather than myth.

Lewis says that myth feels one way, and reality feels another way. All right, Clive—formalize and quantify this “queer twist.” Move beyond your gut feeling and give us an algorithm for reliably telling myth and reality apart in a document. Does it have to do with passive vs. active voice? Is it dynamic vs. passive action? Male vs. female characters? A direct storyline vs. one with tangents? Word choice or subject matter or archaic language or sentence length? Turn this feeling into something that can be tested.

Challenge 1. Let’s take this powerful tool on the road. Test your algorithm on biographies, hagiographies (biographies written to flatter), legend, mythology, and so on. See if it accurately separates Myth and Reality.

Challenge 2. Try it out on religious writings. Does it put the Bible (and only the Bible) into the Reality bin?

Challenge 3. Now use your algorithm to invent a supernatural story that has the traits of Reality. This is a supernatural story that you know is false (because you made it up), and yet you are compelled by your genre argument to declare it true (because that’s how you know Christianity is true). You’re obliged to believe this story as strongly as Christianity by your own argument.

But if you reject this invented story as clearly fiction, you’ll need to reject your test as well. In this case, “if the genre feels right, then the story is believable” wouldn’t work after all.

See also: How Do You Decide What to Believe?

Lewis has company

Early church father Tertullian (died ca. 240) supposedly said about the resurrection, “it is wholly believable because it is absurd.” The New Testament says, “For the message of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God” (1 Corinthians 1:18).

That’s right—it is both foolish and absurd, but that’s not something to celebrate.

That’s not how the adults do it

Instead of the feel test, let’s follow the lead of the experts. We already have a scholarly discipline devoted to deciding what happened in the past. It’s called History. It uses principles shaped over centuries that do a good job of synthesizing what actually happened from what is invariably insufficient or contradictory evidence. Spoiler: history is no friend of the supernatural. The consensus view of historians scrubs the supernatural from the record.

The resurrection, the Trinity, heaven and hell—there’s plenty of nonsense within Christian dogma that has just that queer twist about it that legend has. Invert Lewis’s argument, and it finally makes sense.

For more rebuttals to nonsense from C. S. Lewis, see these articles:

When we remove all the unevidenced beliefs
[from supernatural thinking]
we are left with naturalism.
And when we remove all the unevidenced beliefs

from naturalism,
we are left with naturalism.
— commenter Greg G.

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CROSS EXAMINED After graduating from MIT, Bob Seidensticker designed digital hardware, and he is a co-contributor to 14 software patents. For more than a decade, he has explored the debate between Christianity...