"I replaced thirty-six percent of your brain with an MI splinter component. That sub-mind holds this representation of me." Four gestured to herself. "We can talk freely up to a certain limit, then my knowledge ends. As you experienced in Charles’s little shop of horrors, full biological/mechanical interlink has been possible for a while now. Biological redesign possibilities have also taken similar strides, but the results have been outlawed by the UN. The standard protocols prevented such work on Earth, but now with your help, that is no longer a problem."