Unless I’m reading it wrong, a planet can go from personal experience to ignorance. I’m having a very difficult time imagining how this could occur within the lifetimes of the current characters. Could somebody explain how this could happen?
Deviously effective propaganda campaigns convince the populace that the truth about Vaylen is actually out-of-date and flawed, and convincing-sounding falsehoods are trumpeted as “new scientific discoveries” and modern facts.
Your culture fought a war with them, so you know their tactics. You know what they’re about. Except that they’ve returned and they’ve changed their tactics and come in a new form…