One of main themes I’ve been working with in my near future novel is with the ethical dilemmas of memory erasure, or what I’ll term “mindwipe”. As a science fiction motif this has been around for ages. But we starting to see the edges of it entering actual scientific regions of knowledge and testability. Not only that but the notion of neural implants, and transplanted or false memories, etc. All these technologies come with a price as they always have. They can be used for good or ill. War or peace. That’s the dilemma.