I agree; it's a really, really weird thing to say, especially if the person has studied computer science - maybe he's yet to read what he finds to be a good tex

I agree; it's a really, really weird thing to say, especially if the person has studied computer science - maybe he's yet to read what he finds to be a good textbook? My favourite teacher in high school showed me that certain subjects can actually be interesting, intelligible and enjoyable, and my favourite textbook so far off the top of my head (The Algorithm Design Book) did the exact same. Great and awful professors and books tend to make an impression, and people on Hacker News could go on forever on algorithm books.