It's not just about survival economics and technologies. We need to establish societies independent of an earth which might become dominated by unshakable plan

It's not just about survival economics and technologies. We need to establish societies independent of an earth which might become dominated by unshakable planet wide tyranny at some point. Physical distances and gravity well energy requirements inside the solar system may be as adequate a protection for independent cultural survival as oceans were in the past centuries. While this is obviously a long term result, it really should not be delayed unnecessarily.