Originally posted by NewGuy01
If that were the case, though, why even use Vader as an example? He could have just said "you can still become even stronger," but instead he said "you can become far stronger than he was."
Well yea. The inference that Vader hasn't surpassed Luke yet is the most logical. But it could be argued around if someone was so inclined.
That said, you could argue Luke had surpassed Vader by the end of DE