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Published · transcript-backed

Shawn Wang: uncertainty

2 Apr 2026 Latent Space Moonlake: Causal World Models should be Multimodal, Interactive, and Efficient — with Chris Manning and Fan-yun Sun

“Like, which it’s hard to tell because you put out the end results, but we don’t know the inputs that go into it.”

— Shawn Wang

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Everything needed to verify it.

Speaker
Shawn Wang
Attribution
Verified speaker
Claim type
uncertainty
Recorded
2 Apr 2026
Publisher
Latent Space

Transcript context

…So I think there’s a part of jpa that’s right, which is [00:19:00] you do want to have a joint. Embedding that gives you a consistent model of the world. And Jan’s argument is you can never get that from auto aggressive language models ‘cause they’re sort of left to right churning out one token at a time. I guess this is where we’re the research arguments of the field, I’m not actually convinced that’s right. ‘cause although the token production is this auto aggressive, process that’s heading, left to right, I guess don’t have to be left to right. But anyway, in sequence of tokens we could have right to left Arabic. But although that’s true, all of the weights of the model that are internal to the transformer, they are a joint model of the model’s understanding of the world. And so I think you can think of the weights of the model as a form of. Joint representation, and therefore it is plausible to think that could be the basis of a world model, which avoids, ya’s objections. I think I follow, and obviously that would touch on what Moon Lake eventually ends up doing as well. Right. Like, which it’s hard to tell because you put out the end results, but we don’t know the inputs that go into it. So it’s, it’s, that’s something that we have to figure out over time. Yeah. I mean, I guess this kind of breaks down some of the outputs. Do you wanna walk us through it?…

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