There’s no evidence it’s generic at all. It’s very difficult to access ‘intelligence’ or make usable data about intelligence. You really can’t test how intelligent people are, most of what we can test with repeatable results is skills, which famously can be improved over time reliably. To the point there’s time estimates on how long it takes to be a skilled person in one ability or another. I work with special needs kids, and let me tell you, you learn real quick working with these kids that there’s close to zero differences between them and their same age peers. People are very similar, and even people you’d consider rather foolish on a lot of metrics interacting with them, can be quite brilliant at what they are interested in and skilled in.
There’s no evidence it’s generic at all. It’s very difficult to access ‘intelligence’ or make usable data about intelligence. You really can’t test how intelligent people are, most of what we can test with repeatable results is skills, which famously can be improved over time reliably. To the point there’s time estimates on how long it takes to be a skilled person in one ability or another. I work with special needs kids, and let me tell you, you learn real quick working with these kids that there’s close to zero differences between them and their same age peers. People are very similar, and even people you’d consider rather foolish on a lot of metrics interacting with them, can be quite brilliant at what they are interested in and skilled in.