My reluctance to use alien invasion is due to the feeling that we are not likely to be invaded and taken over. It would seem to me that by the time a race has achieved deep space capability it would have matured to a point where it would have no thought of dominating another intelligent species. Further than this, there should be no economic necessity of its doing so. By the time it was able to go into deep space, it must have arrived at an energy source which would not be based on planetary natural resources.
Clifford D. SimakTime is still the great mystery to us. It is no more than a concept; we don't know if it even exists.
Clifford D. SimakAnd time itself? Time was a never-ending medium that stretched into the future and the past - except there was no future and no past, but an infinite number of brackets, extending either way, each bracket enclosing its single phase of the Universe.
Clifford D. SimakCould that have been what happened to the human race - a willing perversity that set at naught all human values which had been so hardly won and structured in the light of reason for a span of more than a million years?
Clifford D. Simak