LeCun wasn't producing results. He was obstinate and insistent on his own theories and ideas which weren't, and possibly aren't, going anywhere. He refused to engage with LLMs and compete in the market that exists, and spent all his effort and energy on unproven ideas and research, which split the company's mission and competitiveness. They lost their place as one of the top 4 AI companies, and are now a full generation behind, in part due to the split efforts and lack of enthusiastic participation by all the Meta AI team. If you look at the chaos and churn at the highest levels across the industry, there's not a lot of room for mission creep by leadership, and LeCun thoroughly demonstrated he wasn't suited for the mission desired by Meta.

I think he's lucky he got out with his reputation relatively intact.

Isn't it more like this: JEPA looks at the video, "a dog walks out of the door, the mailman comes, dog is happy" and the next frame would need to look like "mailman must move to mailbox, dog will run happily towards him", which then an image/video generator would need to render.

Genie looks at the video, "when this group of pixels looks like this and the user presses 'jump', I will render the group different in this way in the next frame."

Genie is an artist drawing a flipbook. To tell you what happens next, it must draw the page. If it doesn't draw it, the story doesn't exist.

JEPA is a novelist writing a summary. To tell you what happens next, it just writes "The car crashes." It doesn't need to describe what the twisted metal looks like to know the crash happened.

You are beyond correct. World models is what saves their Reality Labs investment. I would say if Reality Labs cannot productize World Models, then that entire project needs to be scrapped.

Failures are not publicly reported, in general. Do you we know what they have invested in?

Most people don't like putting on VR headsets, no matter what the content is. It just never broke out of the tech enthusiast niche.