Huygens then turned his attention to intelligence and technology. His planetary beings would surely have science, and especially astronomy, as this study was said to have arisen as a consequence of the fear of eclipses, which would also occur on other planets. They would doubtless have some of our inventions, “yet that they should have all of them is not credible.” In particular, Huygens could not credit that they would possess telescopes, since he considered those which he had used himself as being so fine that other intelligences would not be able to equal them. Instead, he invested the denizens of the planets with far superior natural eyesight.

Unlike the dinosaurs, we have, in effect, become active agents in changing our destiny. A giant meteor wiped out much of life on earth 65 million years ago because the dinosaurs didn't collectively create a missile shield to deflect the meteor. Humans, on the other hand, with our orbiting telescopes and space probes, and our growing awareness of the threat from space, can track large foreign objects coming from millions of miles away, and are talking about collectively deflecting those that could do us harm.