This is why the world needs dreamers like Musk. Nobody could have predicted the huge technological advances we've made in the last 100 years, let alone the spe

This is why the world needs dreamers like Musk. Nobody could have predicted the huge technological advances we've made in the last 100 years, let alone the speed at which they were developed. If we just keep brushing ideas like this off as "totally impractical right now" then there's no goal to work towards. It's no secret the our time on Earth is limited, and becoming more limited as the human race expands and evolves. It really comes down to weather or not you believe the human race is capable of existing outside of Earth. I am in the camp of "we'll figure it out" just like we have up to this point. My fear is that most people fall into the "I'll die before it happens so why bother thinking about it" camp.