Do not preach doom to Yann LeCun. A pioneer of modern AI and Meta’s chief AI scientist, LeCun is one of the technology’s most vocal defenders. He scoffs at his peers’ dystopian scenarios of supercharged misinformation and even, eventually, human extinction. He’s known to fire off a vicious tweet (or whatever they’re called in the land of X) to call out the fearmongers. When his former collaborators Geoffrey Hinton and Yoshua Bengio put their names at the top of a statement calling AI a “societal-scale risk,” LeCun stayed away. Instead, he signed an open letter to US president Joe Biden urging an embrace of open source AI and declaring that it “should not be under the control of a select few corporate entities.”
LeCun’s views matter. Along with Hinton and Bengio, he helped create the deep learning approach that’s been critical to leveling up AI—work for which the trio later earned the Turing Award, computing’s highest honor. Meta scored a major coup when the company (then Facebook) recruited him to be founding director of the Facebook AI Research lab (FAIR) in 2013. He’s also a professor at NYU. More recently, he helped persuade CEO Mark Zuckerberg to share some of Meta’s AI technology with the world: This summer, the company launched an open source large language model called Llama 2, which competes with LLMs from OpenAI, Microsoft, and Google—the “select few corporate entities” implied in the letter to Biden. Critics warn that this open source strategy might allow bad actors to make changes to the code and remove guardrails that minimize racist garbage and other toxic output from LLMs; LeCun, AI’s most prominent Pangloss, thinks humanity can deal with it.
I sat down with LeCun in a conference room at Meta’s Midtown office in New York City this fall. We talked about open source, why he thinks AI danger is overhyped, and whether a computer could move the human heart the way a Charlie Parker sax solo can. (LeCun, who grew up just outside Paris, frequently haunts the jazz clubs of NYC.) We followed up with another conversation in December, while LeCun attended the influential annual NeurIPS conference in New Orleans—a conference where he is regarded as a god. The interview has been edited for length and clarity.
Steven Levy: In a recent talk, you said, “Machine learning sucks.” Why would an AI pioneer like you say that?
Yann LeCun: Machine learning is great. But the idea that somehow we’re going to just scale up the techniques that we have and get to human-level AI? No. We’re missing something big to get machines to learn efficiently, like humans and animals do. We don’t know what it is yet.
I don’t want to bash those systems or say they’re useless—I spent my career working on them. But we have to dampen the excitement some people have that we’re just going to scale this up and pretty soon we’re gonna get human intelligence. Absolutely not.
