Justin Johnson

speaker

345 appearances 1 recordings 1 series first heard Nov 2025 last heard 25 Nov

Justin Johnson’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 1 in all, peaking in Nov 2025 with 1.

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Um and will that transfer to other modalities and other use cases and other tasks?

Um I hope so, but that'll that'll be a process.

process that we need to play out over time and see.

I think that's sort of like climbing the ladder of technology, right?

Like in some sense, the reason that you want to build these things at all is because maybe traditional physics engines don't work in some situations.

If a physics engine was perfect, we would have sort of no need to build models because the problem would have already been solved.

So, in some sense, the reason why we want to do this is because classical physics engines don't solve problems in the generality that we want.

Um, but that doesn't mean we need to throw them away and start everything from scratch, right?

We can use traditional

Traditional physics engines to generate data that we then train our models on.

And then you're sort of distilling the physics engine into the weights of the neural network that you're training.

Yeah.

So so Marble, like basically one way of looking at it, it's the system, it's a generative model of 3D worlds, right?

So you can input things like text or image or multiple images, and it will generate for you a 3D world that kind of matches those inputs.

And it's also interactive in the sense that um you can interactively edit scenes.

Like I could generate this scene and then say, I don't like the water bottle, make it blue instead.

Like take out the table, like make change these microphones around.

And then you can generate new worlds based on these.

Interactive edits and export in a variety of formats.

And with Marble, we were actually trying to do sort of two things simultaneously.

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