The speaker says that reducing human involvement does not eliminate the bottleneck imposed by how much useful learning signal can be extracted from the real world.

“that doesn't change the fact that you're bottlenecked on like how much signal you can extract from the real world so like there's a lot of signal in the world and that's true like you know there's people doing like spreadsheet tasks there's people doing like legal tasks and all this sort of stuff but you know the capability frontier of where the models are at now like how many bits in the world are actually like really relevant to like”