Elon Musk: "I think if we operate with extreme urgency, then we have a chance of making life multi-planetary. It’s still just a chance, not for sure. If we don’t act with extreme urgency, that chance is probably zero
The rate of innovation is not going to be constant; it’s either going to increase or it’s going to slow down. If you look at American access to space with a crew, we were able to go to the moon in ’69. Then with the Space Shuttle, we could only go to low Earth orbit. Then the Space Shuttle retired, and for almost a decade, America had no access to space with people
So this is a pretty bad trend, it's trending to zero. We need a very strong trend in the other direction in order to have any chance whatsoever of making life multiplanetary. So that's the reason for the extreme sense of urgency."
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