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It's amazing the serious face some people keep "re-discovering" 100+ years old, derived from basic principles technology. The ultimate of this is the autonomous truck convoy: wouldn't it be amazing if we could just have trucks follow each other closely and save a ton on air drag?

Well, yeah, it exists, it's called a train, it's magnitudes longer than any "autonomous truck convoy" ever will be, and instead of the billion dollar AI machine learning big data system we have to keep them close together, we use a fricking mechanical linkage.




And the train will not fail if one single brakepad fails unlike a truck convoy.




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