i don't think favre is done yet and i wouldn't consider myself "dumb" for thinking it. I think that Favre is just as good as he ever was, only now he has a lot of different players than he had in his heyday. Of course his stats are going to be different when he is throwing to Greg Jennings or Carlyle Holiday as opposed to when he used to throw to good receivers like Robert Brooks or Antonio Freeman. Granted Donald Driver is good, but he can't carry all the WRs. Favre used to have a great O-line to block for him, but now they have a few newer guys who just can't perform like a 10 year veteran.
the only way it looks that favre is done is with the current team imo. I find it hard to believe that anyone who has been watching the packers see Favre as too old, when WRs and TEs don't know their routes, and the o-line at times can appear weak. Thats just my take on things.