Having children can reveal how similar they are to you in personality and knowledge, highlighting that the gap between generations may not be as large as we think.

Genetic predispositions can influence performance in various fields, but environmental factors also play a crucial role in shaping abilities.

Cognitive performance, including mathematical abilities, may be influenced by genetic factors combined with training.

The correlation between brain size and IQ indicates that there are actual hardware differences that correlate with intelligence, although these do not explain all variance in human intelligence.

In a study involving pairs of twins discordant for obesity, germ-free mice that received the microbiome of the obese twin became obese, while those receiving the lean twin's microbiome remained lean, despite eating the same food.

The difference between intelligent and unintelligent humans is significant; intelligent individuals can achieve things that others cannot, such as becoming a Harvard professor.

Every parenting book could be replaced with one on behavioral genetics, as much of our behavior is influenced by genetics rather than just upbringing.

IQ isn't a single dimension; there are many unique ways to be smart.

The scaling laws suggest that intelligence can emerge from the right kind of training signals, making the evolution of intelligence less mysterious.