I don't believe people can improve their core intelligence or "g", no. But I do think that people can become smarter and more knowledgeable generally. A person

I don't believe people can improve their core intelligence or "g", no. But I do think that people can become smarter and more knowledgeable generally. A person with a lower g can still learn, grow, and improve. They may take longer to do it, they may reach diminishing returns sooner, but they can do it.