You're right, I exaggerated but I don't think this is a hard game. People spend several months right now on studying interviews. The topics are wide and scope enormous, hence so many complaints; some companies test you on languages, others on algorithms, data structures, dynamic programming, bit manipulations, SQL queries, scalability, unix internals, I could go on and on. On the other hand, there's only so many paths these past history conversations can go, and you know where they can poke at.