> The required scale of technology/economy comfortably puts it in "at least several centuries from now, if we're incredibly lucky and/or devoted". We went from

> The required scale of technology/economy comfortably puts it in "at least several centuries from now, if we're incredibly lucky and/or devoted". We went from not flying anything heavier than air to going to the Moon in 66 years. If we really really wanted to, we could go to Mars in thirty. This is a problem of priorities, not technologies (although the technological problems are real, they are not insurmountable).