<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>Provide for your specific plan for colonization of other worlds, the specific threats to which the plan is a solution, the time frame and likelihood of occurrence of those threats, the specific means by which your plan averts the problems over time, the costs associated with development and implementation of the technology, a time-phased plan to develop the technology and to implement it, and specific criteria for success and the likelihood of achieving them.Okay, and while I'm at it do you want me to cure cancer and the common cold? The original question on the table, "What is the justification for going to the moon", I answered in very concrete and specific terms. Now you want to move the goal posts by insisting that I provide you with specifics down to the cost per square meter for colonizing another planet. Well, I am not going to waste any more time answering your contrived and thinly disguised attempts to side step the issue by insisting that all details be addressed before any valid conclusions can be reached. You are also either being disingenuous or, are just plain ignorant of the facts in requiring me to justify my answer by producing a list of threats facing mankind. Do your own research, there are plenty of potential global catastrophes to pick from, (not all extraterrestrial), and each and every one could be studied and cost analyzed until the end of time, literally. Your argument to me sounds like a case of, “Don’t just do something, sit there"...if we study a problem long enough maybe it will go away...sorry my friend, Armageddon day will come for humanity eventually, and no matter how much you study it, as long as we are solely invested in the one planet earth we will become extinct...no more time to study then. But if we are a multi-planet species we have a chance to survive, this is not a difficult concept.The plain fact is that extraterrestrial threats to the survival of man, while they exist, are of unknown likelihood in any specific time frame and potential countermeasures are not well-defined.You are obviously not addressing what I actually said, you are just making some generic argument to justify your own bias and predetermined conclusions and opinions. Extraterrestrial threats were only one of the possible threats I mentioned, there are others with equal if not higher probabilities of occurrence, but you conveniently left these out of your last diatribe of arbitrary and irrelevant requirements you want me to provide to validate my argument in your mind. What I disagree with is your statement that your opinion is obviously correct, and no contrary opinion is worthy of consideration.Show me where I said that. I don’t think I made this specific statement. Again, you are not addressing what I actually said you are just generalizing and arguing against a predetermined mindset of your own making. Therefore any further discussion with you on this topic is obviously wasted effort on my part.BTW, I did knock it out of the park, but you were so busy moving the goal posts so far into left field that in your mind it only seemed like a bunt. <br />Posted by onesmallstep</DIV></p><p> </p><p>hey onesmallstep, dont you have anything of concrete to show?</p><p> If humans cant survive on earth, they sure wont survive in the moon, or mars, or venus, or any other planet in a radius of many light-years, (if that). </p><p>So much for that "spread humanity in other planets".<br /></p> <div class="Discussion_UserSignature"> </div>