Here I have another view to offer: It is questionable, I say, to spread as urgent something that seems to spring more from a primal human fear: the fear of the tides, of storms and cold, heat or cosmic influences.
My reality is that for fifty years I have inhabited what is probably the best of all cosmic habitats, a flying Earth ship, that is, this planet that we count as part of the Milky Way, which stretches its silver band high above our heads. Fifty years then, I don't know how long it is with you, I experience here and yet, and yet, so shall I only be afraid all this time?
The urgency, it has been preached to me since I was a child, by intrusive messages or voices that have just decided that one should be particularly afraid of this or that. How I look back on a life in which I tried to resist many voices and messages shouting "Hurry, hurry, it will soon be too late!" and I wondered after ten, twenty, thirty years that all the catastrophes, tsunamis, volcanic eruptions, accidents, crashes, plagues and pestilences never once descended on me. How strange ... I must be a downright lucky darling. Me, still alive, completely unharmed, my friends, my family, somehow all grown quite old, but sure, some of them have probably even been afraid of growing old for more than twenty years! That impresses me on an awkward level.
But I say "the little dot that Voyager photographed from afar", that to me is the biggest, best, most amazing, most impressive thing there can be. This Earth with everything I don't know about it, have never seen, will never be able to go to, have only stepped on a small patch of it here and there in this life, that I shall fear because a gamma flash from space or a comet could wipe everything out? No, I do not choose to fear such things and be frozen into cryptogenic sleep, I would never do that "just in case", but just for fun in my imagination.
If something powerful comes along, then I am not prepared. Never. So I'd rather live now without fear than follow the worried ones who imagine a better life out there. If I were from out there, I would probably shake my alien head in incomprehension, because this, the earth, is a paradise. Only those human fears suck out the joy of their lives ...
Now then, IF a catastrophe happens right where I live and breath, I, of course, would do what would be necessary.