Your cat is watching you right now. It knows your schedule, your footsteps, your moods. And you have no reliable way to know what it knows.

For centuries, we have tried to communicate with animals by asking the wrong question: what are they thinking? In this bold, rigorous, and deeply original book, Boris Kriger argues that this question is not merely unanswerable—it is incoherent. The interior of any complex system, from a cat to a human brain to an AI chatbot, is permanently inaccessible. But the exterior—behavior—is observable, predictable, and measurable. And when an AI system learns to predict an animal’s behavior from its movement, heartbeat, brain waves, vocalizations, and context, those predictions can be rendered as a voice: first-person, customizable, and honest about its own uncertainty.“I’m coming to you.” “You’re leaving and I know it.” “Something is wrong. I don’t know what.”

Drawing on behaviorist psychology, predictive neuroscience, and the latest in AI, Kriger develops a complete framework for interspecies communication that applies equally to cats, dogs, non-verbal humans, AI systems, and even a hypothetical signal from deep space. The voice’s confidence tracks the prediction’s accuracy. When the system knows, it speaks. When it does not know, it says so. In a world of overconfident machines, this may be the most radical idea of all: an AI that tells the truth about what it does not understand.

Talking to Animals will change the way you think about communication, consciousness, and the creature on your windowsill.