Imperfect1,
Totally agree --- being able to get off of this planet (and having somewhere hospitable to go) would be our only hope of survival.
Meanwhile, I would be eating all those fattening things I've been depriving myself of, not to mention indulging in other treats of various sorts!
Sorry to be a party pooper, but what makes you think that there is another planet out there that would be a suitable habitat for you? I know that is a popular concept, but a very faulty one. Even if such a place existed, it would be subject to all of the same dangers as the one that we live on and call home. I also know that in the modern world that the word "home" doesn't have the meaning that it once did, and should still have. I spent the majority of my adult life moving around the country due to employment considerations, and never spent more than a year or two in one place, until recent years (retired). Where I now live is not really a home, but it is the closest thing to it that I have had since childhood, and have come to enjoy it enough that I don't intend to move again, so long as I have a choice.
I realize that your comments were just being facetious, so forgive me for using them for launching my little rambling rant from, but I do so because many people do not appreciate the value of the planet that we live on. No, I'm not an environmentalist or of any mindset related saving the whales, seals, dogs, cats or any other critter including humans, except in less material terms. I shall not go directly into that, partly because I'm not inclined to do so, and partly because it wouldn't be tolerated anyway. What is important is that we all need to prepare ourselves for events that we would prefer would never happen...because they will regardless, but not by some Mayan calendar.
That preparation does not include tossing it all to the wind, and going into binges of behavior that we have trained ourselves to avoid for health or other forms of well being, but it does mean coming to terms with life...ours and others. Doing so will probably not prevent a cosmic collision, as is being discussed, and may not save our lives in this flesh, but our lives will continue long after this flesh is dead, and life shall continue on Earth long after the dust settles. The Earth shall never end...neither will we.