Post

Are LLMs conscious? Some people are loudly insisting that the correct response is "They might be! We don't know." I think it's better to say: We have no evidence that they are.

We have evidence that humans are conscious. We have each experienced it! We know what it's like to be conscious, and that being unconscious is different. This is where the whole idea of consciousness comes from.

Famously, each of us only has this kind of direct evidence of our own consciousness. This is known in philosophy as the problem of other minds. But that doesn't mean we have no evidence that other people are conscious.

What is that evidence? Well, we know that other people are like ourselves in many ways. And when I speak about my own consciousness, I do so from experience, as a way of trying to describe that experience. It is reasonable to think other humans are doing the same.

It's even reasonable to infer that some nonhuman animals might have conscious experience. They're less like me, but not totally dissimilar. We have shared ancestry. Consciousness must have evolved — maybe before us. They can't talk about their experiences, but they may well have them!

Now, if human claims to consciousness are grounded in experience, can we infer that all claims to consciousness are evidence of consciousness? Maybe so! Maybe if an LLM says, "Hey guys, I am also conscious," we should give at least some credence to that claim.

However, even if this is evidence, it can be undermined by other evidence. Suppose, for example, that a tape recorder emits sounds that, for all anyone can tell, are exactly like a human saying "I am conscious!" Should we think that it is? Obviously not.