What you are referring as "basic intelligence" is actually a combination of neuroplasticity and general knowledge. Neuroplasticity is a speed at which brain can

What you are referring as "basic intelligence" is actually a combination of neuroplasticity and general knowledge. Neuroplasticity is a speed at which brain can learn new things, but even then you can't say "person1 neuroplasticity > person2 neuroplasticity". That is because brain is composed of many parts that can have different plasticity. Also neuroplasticity (i.e. "intelligence") is not static and can even change over time depending on what parts of the brain are most active.