I think you need a little talent to become a gm.... anyone can memorize openings with enough work, it helps but you need a lot more.
Reaaaaally. How do you explain my draws against Rybka 3 with White in 20 0 games on FULL STRENGHT? And my fide is just 2080. If I just start exhanging pieces and avoid complication I can draw Rybka many times.

Is it just my impression or talent has been replaced by theory? I mean if you know your opening repertuar very well and that's not hard to archieve you will from memory end with imbalanced but equal chances 4 or 3 pieces end game. There is simply no place left for strong imagination and calculation. So this days with good memory and eng game knowledge(2 fat books on endings are found in any GM home) is not for no reason.
So it seems to me without talent you can become a GM with THIS set-up. (not fischer random).