Tesla and SpaceX CEO Elon Musk has once again reignited his long-running public feud with Meta AI chief scientist Yann LeCun, this time mocking the veteran AI researcher over his views on artificial general intelligence (AGI). The fresh exchange unfolded on social media platform X (formerly Twitter) following LeCun’s recent remarks dismissing the very concept of general intelligence.

The latest flare-up began after a video clip from a recent podcast featuring LeCun went viral online. In the clip, the renowned computer scientist argued that there is no such thing as general intelligence, claiming that even human intelligence is far more specialised than people believe.

“There is no such thing as general intelligence,” LeCun said during the podcast. “Human intelligence is super-specialised for the physical world, and our feeling of generality is an illusion. We only seem general because we can’t imagine the problems we’re blind to.” He went on to describe the concept of general intelligence as “BS”.

Musk’s sharp response on X

Reacting to the video shared on X, Elon Musk took a direct jab at LeCun. “Definitely not in his case lol,” Musk wrote, implying that LeCun himself lacked the general intelligence he was criticising. The sarcastic comment quickly gained traction, drawing reactions from supporters and critics of both tech leaders.

As of now, Yann LeCun has not publicly responded to Musk’s latest remark. However, given their history of frequent disagreements, the silence has not dampened speculation that the debate could escalate further.

A long-standing rivalry in the AI world

The feud between Musk and LeCun is not new and has played out publicly over several years, often reflecting deeper philosophical differences about the future and risks of artificial intelligence.

One of the earliest public confrontations dates back to January 2017, when LeCun openly criticised Musk for serving as an adviser to then US President Donald Trump during his first term. In a post at the time, LeCun urged Musk to step down from the role, warning that continuing would damage his legacy regardless of intent.

“You are an advisor to Trump. Quit. If you stay, fight and know that this will hurt your legacy regardless,” LeCun wrote.

Clash over AI timelines and capabilities

Their disagreements resurfaced strongly in 2024 when Musk made bold predictions about the pace of AI development. In an X post, Musk claimed that artificial intelligence would likely surpass any single human in intelligence within a year and could be smarter than all humans combined by 2029.

LeCun firmly rejected the claim with a blunt “No,” challenging Musk’s assumptions with practical examples. He argued that if AI were progressing at the pace Musk suggested, systems should already be capable of learning complex tasks with minimal training.

“If it were the case, we would have AI systems that could teach themselves to drive a car in 20 hours of practice, like any 17-year-old,” LeCun said. He pointed out that despite millions of hours of labelled data, fully autonomous and reliable self-driving systems are still not a reality.

Tensions escalate over xAI hiring post

The rivalry intensified further in May 2024 when Musk posted a recruitment message for his AI venture, xAI. In the post, Musk invited people to join xAI if they believed in “maximally rigorous pursuit of the truth, without regard to popularity or political correctness.”

LeCun responded sharply, mocking Musk and questioning the consistency of his messaging. In a pointed reply, the Meta AI chief scientist wrote that joining xAI would require tolerating a boss who repeatedly predicts imminent breakthroughs, warns of AI-driven extinction, and simultaneously claims to pursue truth while spreading what LeCun described as “crazy-ass conspiracy theories” on his own platform.

The remark further highlighted the ideological rift between the two, with Musk often emphasising existential risks from AI, while LeCun remains sceptical of near-term AGI fears.

Broader implications for the AI debate

The renewed spat underscores a larger debate within the global AI community about the nature of intelligence, timelines for AGI, and the balance between innovation and caution. Musk has consistently warned about the potential dangers of unchecked AI development, while LeCun has argued that current systems are far from possessing anything resembling general intelligence.

Their public disagreements, while personal in tone, reflect fundamental divisions shaping AI research, policy, and public perception worldwide.

Conclusion

Elon Musk’s latest jab at Yann LeCun has once again brought their long-standing rivalry into the spotlight, reigniting debates over artificial general intelligence and the future of AI. While LeCun has yet to respond, the exchange highlights enduring tensions between two of the most influential voices in technology, with implications that extend far beyond social media sparring.