But it is an example of a wrong belief. Which, if we assume that theism is a wrong belief, we must equate the two as both being false statements. If you don't like the car key example, simply substitute it for any other belief that you hold that has a high likely hood of being false; or do you claim you have none.
Further, You still ignore the fundamental argument, and stick on the example. If it not possible to have a blind spot in reason, but be reasonable in all (is anyone really reasonable in all instances? -- let's say many instead) other instances.
You believe that it is impossible to hold a "wrong belief" and still be "smart"? Have you ever believed your car keys to be one place, when they were in another? Are there any issues that you have a known bias about, or are you claiming all your beliefs are 100% rational all time? Even when you change your mind?
If you accept the claim that theism is irrational or less rational then atheism, is it not still possible for Wednesday to be rational on most other subjects?
Yes, the child was pretty brutal. That said, so was Galileo when he stood on the table and dropped fruit, while having a polite diner with a clergyman who "knew" that heavier objects fell faster than light objects -- if the story is true.
To use your analogy. Any person who doesn't provide the expected output is often deemed crazy... It doesn't mean that there is a bug in the person, perhaps sometimes it's a bug in reality.
I've talked to a number of people who most would call crazy (none of them went to the mad house -- at least that I know of). When you begin to look at things from their perspective you sometimes find that they see patterns others are missing; but lack the social graces and unique way or inability to relate those patterns to others is lost.
On the other hand, I think that we are all "crazy" and "stupid" in our own ways. I think there are really extreme cases of both.
I suppose what I was referring to is a spec bug; the bug is in expecting the wrong (accepted by society) output. Not an actual "the universe hiccuped and needs to be rebooted." The reason for the spec bug might not be a shared bug, but programs operating on different inputs. For instance, Tesla... Anyone who knew Tesla described him as an odd man, and a little crazy. At the same time, he purposefully filled his input buffer with the latest research on electricity and purposefully processed that data differently than his peers in the field. He didn't spend much time accumulating input on proper social behavior, or on how others would judge him on the streets. It is seen as a crazy thing to do, to pick up wounded pidgins on the street, take them home and nurse them back to health. Because the spec of the time (norms of society) say it was odd to do.
An old friend of mine who I haven't seen in years is an artist. He's a creative minded person who thinks that rationality would tie his hands too much. That said, when I was younger it surprised me the types of puzzles he was able to solve because he'd try the thing that seemed irrational.