The energy requirements for interstellar travel are so great that it is inconceivable to me that any creatures piloting their ships across the vast depths of space would do so only in order to play games with us over a period of decades. If they want to make contact, they would make contact; if not, they would save their energy and go elsewhere.
Interpretation
The quote suggests that if extraterrestrial beings exist, their reasons for traveling through space would be more significant than simply trivial engagement with humanity.
Isaac Asimov's quote reflects on the immense energy required for interstellar travel and posits that any advanced civilization capable of such feats would likely have serious purposes for their journeys. The idea that they would only engage with humans for entertainment or trivial matters seems implausible; rather, if they were truly interested in communication, they would readily make contact, or alternatively, they would conserve their energy for pursuits that matter to them elsewhere in the universe.
In practice
This quote can be used in a TED talk about the possibilities of extraterrestrial life and their implications on human existence.
Democracy cannot survive overpopulation. Human dignity cannot survive it. Convenience and decency cannot survive it. As you put more and more people into the world, the value of life not only declines, but it disappears. It doesn't matter if someone dies.
Science does not promise absolute truth, nor does it consider that such a thing necessarily exists. Science does not even promise that everything in the Universe is amenable to the scientific process.
Democracy cannot survive overpopulation.
Although the time of death is approaching me, I am not afraid of dying and going to Hell or (what would be considerably worse) going to the popularized version of Heaven. I expect death to be nothingness and, for removing me from all possible fears of death, I am thankful to atheism.
A subtle thought that is in error may yet give rise to fruitful inquiry that can establish truths of great value.
During the century after Newton, it was still possible for a man of unusual attainments to master all fields of scientific knowledge. But by 1800, this had become entirely impracticable.
Mathematics is the language with which God has written the universe.
Science is a cooperative enterprise spanning the generations. It's the passing of a torch from teacher to student to teacher. A community of minds, reaching back to antiquity and forward to the stars.
Science now finds itself in paradoxical strife with society: admired but mistrusted; offering hope for the future but creating ambiguous choice; richly supported yet unable to fulfill all its promise; boasting remarkable advances but criticized for not serving more directly the goals of society.
A theory which is not refutable by any conceivable event is non-scientific. Irrefutability is not a virtue of a theory (as people often think) but a vice.
If the rate of expansion one second after the Big Bang had been smaller by even one part in a hundred thousand million million, it would have recollapsed before it reached its present size. On the other hand, if it had been greater by a part in a million, the universe would have expanded too rapidly for stars and planets to form.
Our circadian biology, and the insatiable early-morning demands of a post-industrial way of life, denies us the sleep we vitally need.
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