These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Book Worm
Genius Bonus: Lex's name is actually a verb used in computer science. It means to perform "lexical analysis" which is to convert a string of characters into something meaningful. This perfectly mirrors how you turn letters into words/food for Lex.