He seems pretty savant to me, obviously on a skateboard, but there’s also stories from Theo hand of him saying Tom is fluent in multiple languages, picking them all up with ease while traveling, etc. and his manner of speech is pretty on par with that as well. I don’t think it’s an exaggeration when Rowley says in menikmati “he’s off in his own little Penny world”. Dude is just out there, genuinely on a different level, but then you add heavy substance abuse into the mix and shit gets dicey real quick, so not surprising he has someone helping him with his day to day affairs.