Time & Perspective Quote by David Brin

Assumptions are the real weapons of mass destruction in Brin's universe: cheap, plentiful, and routinely detonated at the moment two unfamiliar worlds touch. The line reads like a historian’s autopsy report, but it’s really a sci-fi writer’s warning label. By calling it the “worst mistake of first contact,” Brin isn’t just talking about aliens. He’s indicting a human reflex: we meet the unknown and immediately rush to translate it into something familiar, flattering, or safely inferior. That translation is rarely neutral. It smuggles in hierarchy, fear, entitlement.

The phrasing does a sly bit of moral bookkeeping. “Individuals on both sides of every new encounter” refuses the comforting myth that brutality is a one-way export. Brin spreads responsibility across the contact zone, where misreading becomes mutual escalation. “Assumptions” sounds mild, almost polite; then he snaps the consequence into focus: “It often proved fatal.” The emotional effect is whiplash, and that’s the point. Catastrophe doesn’t always begin with malice. It begins with confidence.

Contextually, Brin is writing in the long shadow of colonial “discoveries,” Cold War brinkmanship, and the sci-fi tradition that treats first contact as either wonder or invasion. His intent is to reframe it as a cognitive problem: the danger isn’t simply what the other is, but what you decide they are before you’ve earned the right to know. The subtext is a critique of certainty itself. In the politics of encounter, arrogance is the fastest path to tragedy.