What does the assertion that intelligence is heritable mean to you? It means that if I dropped a bunch of Danes into South Korea, their children would be close

What does the assertion that intelligence is heritable mean to you? It means that if I dropped a bunch of Danes into South Korea, their children would be closer in height to their cohort in Denmark than would the children of another group of Danes dropped into North Korea. The North Korean Danes would be taller than the North Koreans and the South Korean Danes would be taller than the South Koreans.