The public exchange began when Elon Musk posted a video of the Tesla Roadster appearing to fly, claiming it proves the future of flying cars. Yann LeCun, a Turing Award winner and former Meta AI chief, criticized the concept, calculating that the compressed air propulsion system would only provide thrust for approximately 5 to 10 seconds.
LeCun dismissed the Roadster's flight capability as a marketing gimmick rather than a genuine technological achievement. He noted that replacing passenger seats with a 400-liter high-pressure air tank might allow for brief hovering, but it does not represent a viable path toward functional flying vehicles.
Musk responded to the critique with a quote from the film Monty Python and the Holy Grail, while LeCun countered by comparing the car's propulsion to a loud, high-pressure gas release. LeCun clarified that his criticism targets marketing stunts rather than Musk's actual accomplishments, noting he owns two Tesla vehicles.
Tesla senior engineer Yun-ta Tsai commented on the situation, suggesting that academic critics often lack practical manufacturing experience. Tsai argued that theoretical knowledge from elite institutions does not equate to the ability to translate complex equations into physical products, emphasizing the value of hands-on engineering expertise.
