Lets see... if the youngest GM was 11 (almost 12) and if IQ is mental age / actual age AND if we assume Karjakin (record holder for youngest GM) had a huge IQ of 180 (which is incredibly unlikely, but just for the sake of argument) AND THEN put that into adult IQ, it means he had the mental age of a 20 year old with an IQ of 100.
So if you're an adult with an IQ of 100 you're intelligent enough to be a GM. Congratulations.
Of course 8 years of coaching and tournaments before you hit puberty helps a lot... just pointing out the IQ thing is ridiculous.
Exactly. There are so many other tangible factors to consider that it's just plain odd to go into hypotheticals like talent and IQ.
There are 8 million registered players in FIDE's database.
Now, that excludes millions of players who are registered in national federations but not with FIDE. Well over 2/3rds of the US chess players are not on that list for example.
Best estimates are that world wide there are around 20 million or so competative chess players.
GM's are .007% of the competative chess players in the world.
That means for every GM there are around 13,000 competative chess players who aren't GMs.
Anyone who thinks it's just dedication and hard work is delusional and oblivious to the facts involved.
Not saying you are wrong in saying there is talent involved, but those numbers really don't proof anything. Probably at least 12 000 of those 13 000 so called competitive chess players still don't play or train nearly as much as the GM's do. There is a difference between playing/training 5 and 10 hours a day, and there is also the difference between playing/training 10 and 11 or even 11,5 hours a day. And there's also the quality of the training.