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Elon Musk on the power of “cross-pollinating” ideas from different industriesHe uses Tesla and SpaceX as an example:“The Model S is the only all-aluminum body and chassis car made in North America. Very few cars are all aluminum. In the aerospace industry, that’s the default. So it seemed like obviously the right move to minimize the non-battery-pack mass of the car. In order to offset a fairly heavy battery pack, we had to make the rest of the car light, but still achieve a five-star safety rating. I don’t ...