I wish! But then we would all have one and we would all be as smart as each other? I think you can be smart in different ways. I was not very subject clever at school, but I had smart social skills and that can take you really far in life!
Hmm, it does sound good doesn’t it, I bet loads of people would fancy a bit more brain power but I don’t think medical science is quite at this level yet. There is quite a lot of research going into how humans and computers can work better together (such as better voice control in smart speakers for example). Also, any medical procedure has risks, I’m not sure I would want to have a doctor poking around in my brain unless it’s absolutely necessary!