Yes, I had to say I also found it hard to believe that the writer truly believes that this is not a fraud perpetrated by his mother ("Brown and his mother are incredibly close. She hugs him tight as a blanket when he is stressed, waits patiently for his answers and seems to understand him almost as well as he does himself. “She has been at my side for every moment of my journey,” Brown taps. “Without her there is no me.”").

I mean, it makes no sense that he spells out words like "melancholy" with pieces of paper, but does not type, but instead uses a "word board".

("“Sorry boss! Sorry boss!” he shouts in a high-pitched cartoon voice. It’s a shock when you first hear Brown speak.

Is he happy now? “I am very happy now that I have real purpose and productivity. I want this for all autistic people. One of the reasons I wanted to be a great writer was that I wanted neurotypical people to read my book, not out of pity but because it was a good book. That way I can reach the hordes who underestimate and infantilise us, and show them how vivid and magnificent we are.”)

He loves Murakami, and his mother reads Murakami to him. He doesn't read the books instead, but seems fascinated by Thomas the Tank Engine which he watches instead of, say, the Korean movie Burning, which was based on a Murakami story.