I recently attained an MA in Linguistics and the discussion is fairly similar to the question of fully acquiring a language, fluently, beyond what they call the "critical period". All I can say confidently with regards to this analogy is that it is a lot harder, but there are exceptional cases where it can happen. As well as neurological differences, it is a case of having the willpower and urge to immerse yourself in the game, as well as other responsibilities. These are huge factors too. 20 is also a better age to start than 30. I often look back and wish I started doing something at 20 instead of 28, and I'm sure one day I'll look longingly at being my age now (29) and having so many years to master a new skill!
Guy starts chess at age of 20, is there the possibility he will ever achieve GM?
Talent does not matter. Hard work does.
You couldn't be more wrong.
I've known several people, very intelligent, that loved chess and studied, played all the time throughout their lives and couldn't break 1600. They just didn't have any talent for the game.
Of course No....
He will be playing or with 6year old small kids or enough experienced titled peers!
So thats embarassing at both ways

bb_gum certainly doesn't believe in improving memory I guess, kinda like we are born with whatever memory box the brain has :(
gotta wait millions of years for evalooshin to do something then :(
www.youtube.com/watch?v=F8TRoMSG-5I
I Yam What I Yam
GM Bryan Smith learned the game at 13. He didn't get to 2000 until he was 17, in 1997. And 2 years ago he became a GM. So there.

Even with a Carlsen sized talent it would be pretty tough, the most elastic years are behind them while current GMs have a huge head start and already assimilated chess understanding and developed skills with far more free time as children and teenagers.
TheGreatOogieBoogie написал:
Even with a Carlsen sized talent it would be pretty tough, the most elastic years are behind them while current GMs have a huge head start and already assimilated chess understanding and developed skills with far more free time as children and teenagers.
Carlsen is not a talent,he is just luvky,didnt you see his first two losses at Norway Chess?!

Well, how far will the naysayers allow our 20 year-old novice player to go?
2200?
2300?
2400?
2450?
2499?
You see my point. There is no magic wall at 2500 (ignoring for the moment the various FIDE norm requirements). If a 20 year-old could make it to 2400, why not 2500?
Then again, we could attack from the other angle. How old could a novice player be and still make GM?
16?
17?
18?
19?
There are no magic walls here either. If someone could make GM from 16, why not 20?
The young human brain has a huge advantage over more mature brains in language acquisition, but there is no big neurological advantage I'm aware of for 16 vs 20 year-olds.
The most significant differences I see are sociological not biological. Very few 20 year-olds have the luxury or desire to devote their lives to a game they just learned with the seriousness required for achieving GM today or in Chigorin's time.
But that doesn't mean it can't be done.
Short answer, no.
Long answer. Still No.