That's not necessarily true. In part because words are lossy--there's lots of things the character can see that can't be described well in words. In addition, being removed from things (and having lots of experience that the character doesn't have) can make it easier to deduce the presence of a trap (to continue that example). A level 1 character wouldn't know that's a trap (he's never seen something like that before), when the experienced player is dead sure it is.