LeCun Does the Math on Musk's Compressed-Air Car (~5s of Thrust); Musk Replies 'I Fart in Your General Direction'
nima_owji · x · 2026-10-19
A viral X exchange: Yann LeCun broke down Elon Musk's compressed-air thrust demo, noting specific impulse under 50 seconds means even with 50% of the car's mass as air you get under 10 seconds of useful thrust — "probably more like 5 seconds." His verdict: "Cute demo, but totally impractical." Musk's reply: a Monty Python quote, "I fart in your general direction," complete with a fart emoji.
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