This has to be paid placement for the book, shame on you Guardian. Also it's laughable. Intelligence is basically something you're born with. Around half is in

This has to be paid placement for the book, shame on you Guardian. Also it's laughable. Intelligence is basically something you're born with. Around half is inherited, the rest is, IMO, luck, but still determined very young or in the womb. Giftedness is measurable young, possibly at the beginning of speech (gifted children almost always talk earlier than average). This raises doubt that it's something developed by training. Some studies also, controversially, show that final IQ can't be easily manipulated by learning. That IQ is fixed at a young age and remains static through a wide variety of future up brining.