jaer said:I agree: a streetwise character who makes a successful check would know that info. Where my taste and 4e seem to diverge (in spirit! I'm not saying I can't do this in 4e if I continue to DM via my own style) is with this one point:
- In 4e, it seems as though the guidelines for using skills allow for a player who has run down a dead end alley to use the streetwise skill. Success means he found a way out; failure means he did not.
- By my style, I know before the character even runs down that alley if there is another way out or not. A streetwise check would have revealed that info to him had he made the check before he ran down the alley, and it will reveal the same info if he is in the alley. A failure means he does not know. A success means he does know if there is or isn't.
I think you're overlooking a level of abstraction here. The player doesn't say "I run down Murderer's Alley to elude the guards! I roll a Streetwise check to find a way out!" to which the DM responds based on either of your posited models.
Instead, the player says "I want to try ducking down an alley and losing the guards, maybe by squeezing through a gap in a fence or diving down a sewer. My Streetwise result is 24."
To which the DM responds "Well, there's no such escape route down Murderer's Alley, so you don't want to go down there--but there is a sewer grate in the alley between the tinker's shop and the tailor's. You dash into the alley, wrench the grate free, and drop into the tunnel seconds before the guards catch up."