Is it invasive? (Will I have electrodes implanted in my skull?) Is it intuitive? Can I just think and things happen or do I need to deeply concentrate? Are

Is it invasive? (Will I have electrodes implanted in my skull?) Is it intuitive? Can I just think and things happen or do I need to deeply concentrate? Are there harmful side effects? (Using it causes headaches or might induce seizures?) Can I trust the brain interface creator? (Are they lying about possible risks? Can they "read" my thoughts without my permission?)