ITHome October 20 news: AI pioneer, founder and chairman of AMI Labs, Yann LeCun, recently noticed Tesla's next-generation Roadster on the X platform, and he considers the car "completely impractical."
Yann LeCun said that the car uses only compressed air, with very poor specific impulse (less than 50 seconds). Even assuming the compressed air accounts for 50% of the vehicle's total mass, with a thrust-to-weight ratio greater than 1.0, the effective thrust could only last less than 10 seconds, and in reality perhaps only about 5 seconds.
Therefore, he believes the car must be just a hollow, lightweight shell plus large compressed-air tanks. The launch event was very interesting, but the product is completely impractical.
ITHome noticed that Musk responded to this by saying: "I farted in your direction。”
Yann LeCun then clapped back: "If the abdominal pressure is high enough, farting really could make you fly. Think carefully—your car is driven by the same principle:a fart with a pressure of up to 700 bar、a capacity of 600 liters、lasting 3 seconds、with a huge sound. 【I hope there's no methane in there, or those god-awful smelly compounds】."
ITHome note: Yann LeCun is one of the key inventors of the convolutional neural network (CNN), and his theories greatly advanced modern computer vision, which is widely used in image and visual recognition. He won the Turing Award in 2018 and is hailed by the industry as one of the "AI godfathers."