“Characteristic of a young brain: fast and focused.”

“Characteristic of a young brain, fast and focused.”

“The ability to solve novel problems, discussed as an emerging trait in Grok 4.”

“Fluid intelligence is being fast and focused in the brain. And you tend to focus on one part of the brain, either left or right.”

“Discussed as a recombination of specialized learned problems rather than a single 'IQ gland'.”