We have developed unprecedented means of self - destruction, and maybe our species does not survive long enough to develop time travel technology. (newscientist.com)
He had recently been diagnosed with a degenerative disease, and it was thought that he might not survive long enough even to finish his PhD. (newscientist.com)
Still, these companies usually have not survived this long without learning a thing or two about survival and adaptation. (carinsurancequote.net)