I have a relative - a girl aged nearly ten years old. She complained to her lovely Jamaican lady neighbour that: "Can you believe I am nearly ten and I still haven't read the Tractatus?" So the neighbour, who is a volunteer at the children's library, promised to look for it in there for her as though she's likely to find Wittgenstein's opus magnum nestled between Charlotte's Web and The Gruffalo. I thought that was hilarious until I discovered this little girl has already read Kant, Hegel, Schopenhauer and other philosophers, and could not only discuss them, but also critique them and highlight their respective inconsistencies and weaknesses like a post-grad student at Cambridge. Her dad thinks she's brilliant (I agree!) but her mum just wants her "to be normal" and have the same interests as her friends and is worried that she might be "on the spectrum (I disagree).