I don't think any of his code examples are really JTBs because, like you said, its not "true". In the cow example, you make an assumption based on the papier ma

I don't think any of his code examples are really JTBs because, like you said, its not "true". In the cow example, you make an assumption based on the papier mache cow that actually turns out to be true through information you didnt have access to. All of his code examples are more about him making assumptions that turn out to be false instead based on information he didn't have access to (or rather didn't think to access at least). I don't think this really affects the take home message from the piece, I'm just being pedantic that it doesn't parallel perfectly (which he even acknowledges people may say in the last paragraph).