--- title: "Meaning & Key Takeaway of: One theory which can no longer be taken…" description: "\"One theory which can no longer be taken very seriously is that UFOs are interstellar spaceships.\" — Arthur C. Clarke" image: "https://sms4smile.com/quotes/i/e3b/arthur-c-clarke-640_interstellar_one-theory-which-can-no-longer-be-taken_2114926.jpg" --- # One theory which can no longer be taken very seriously is… ![“One theory which can no longer be taken very seriously is that UFOs are interstellar spaceships.” quote by Arthur C. Clarke](https://sms4smile.com/quotes/i/e3b/arthur-c-clarke-640_interstellar_one-theory-which-can-no-longer-be-taken_2114926.jpg) [Download](https://sms4smile.com/quotes/i/e3b/arthur-c-clarke-640_interstellar_one-theory-which-can-no-longer-be-taken_2114926.jpg) [Open image](https://sms4smile.com/quotes/i/e3b/arthur-c-clarke-640_interstellar_one-theory-which-can-no-longer-be-taken_2114926.jpg) > “One theory which can no longer be taken very seriously is that UFOs are interstellar spaceships.” [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Critiques the outdated notion that UFOs are alien spacecraft, urging a more scientific perspective. **In simple terms:** UFOs are unlikely to be alien ships. Key Takeaway Adopt evidence‑based views on UFOs. Themes skepticism science space Mood critical inquisitive Type analytical skeptical When to use this quote - public discourse - scientific inquiry - media analysis Key Concepts UFO research critical thinking Questions to Reflect On - What evidence would change your view? - How does media shape UFO beliefs? A Different Perspective Some may feel the claim dismisses unexplained phenomena. ★ ★ ★ ★ ★ No ratings yet [Interstellar](https://sms4smile.com/quotes/about/interstellar/) [Space](https://sms4smile.com/quotes/about/space/) [Spaceships](https://sms4smile.com/quotes/about/spaceships/) [Ufo](https://sms4smile.com/quotes/about/ufo/) [Ufos](https://sms4smile.com/quotes/about/ufos/) ## Related quotes > [It is a truism that the structure of a society is basically determined by its technology. Not in an absolute sense-there may be totally…](https://sms4smile.com/quotes/poul-anderson/it-is-a-truism-that-the-structure-of-a-society-is-basically/) [Poul Anderson](https://sms4smile.com/quotes/author/poul-anderson/) > [After I give lectures-on almost any subject-I am often asked, "Do you believe in UFOs?" I'm always struck by how the question is phrased,…](https://sms4smile.com/quotes/carl-sagan/after-i-give-lectures-on-almost-any-subject-i-am-often-asked-do-you/) [Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/) > [It is my conclusion that UFOs do exist, are very real, and are spaceships from another or more than one solar system. They are…](https://sms4smile.com/quotes/hermann-oberth/it-is-my-conclusion-that-ufos-do-exist-are-very-real-and-are/) [Hermann Oberth](https://sms4smile.com/quotes/author/hermann-oberth/) > [The dinosaurs disappeared because they could not adapt to their changing environment. We shall disappear if we cannot adapt to an environment that now…](https://sms4smile.com/quotes/arthur-c-clarke/the-dinosaurs-disappeared-because-they-could-not-adapt-to-their/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [If man survives for as long as the least successful of the dinosaurs-those creatures whom we often deride as nature's failures-then we may be…](https://sms4smile.com/quotes/arthur-c-clarke/if-man-survives-for-as-long-as-the-least-successful-of-the-dinosaurs/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [“Wealth ... or death. Those were the choices Gateway offered. Humans had discovered this artificial spaceport, full of working interstellar ships left behind by…](https://sms4smile.com/quotes/frederik-pohl/wealth-or-death-those-were-the-choices-gateway-offered-humans-had/) [Frederik Pohl](https://sms4smile.com/quotes/author/frederik-pohl/) > [If the oncoming mutation to interstellar immortality is screwed up by the politicians, it will be because those of us who see the opportunities…](https://sms4smile.com/quotes/robert-anton-wilson/if-the-oncoming-mutation-to-interstellar-immortality-is-screwed-up-by/) [Robert Anton Wilson](https://sms4smile.com/quotes/author/robert-anton-wilson/) > [If interstellar travel is as time- or energy- demanding as the above figures indicate, it is far from obvious what the motive for colonization…](https://sms4smile.com/quotes/anonymous/if-interstellar-travel-is-as-time-or-energy-demanding-as-the-above/) [Anonymous](https://sms4smile.com/quotes/author/anonymous/) > [We don't know how to identify intelligence over interstellar distances, so what we do instead is use technology for a proxy,](https://sms4smile.com/quotes/jill-tarter/we-don-t-know-how-to-identify-intelligence-over-interstellar/) [Jill Tarter](https://sms4smile.com/quotes/author/jill-tarter/) > [The simple truth is that interstellar distances will not fit into the human imagination.](https://sms4smile.com/quotes/douglas-adams/the-simple-truth-is-that-interstellar-distances-will-not-fit-into-the/) [Douglas Adams](https://sms4smile.com/quotes/author/douglas-adams/) > [“Time throws you out of its dimensionless planar like a boomerang. It unites with you again in death.”](https://sms4smile.com/quotes/vishwanath-s-j/time-throws-you-out-of-its-dimensionless-planar-like-a-boomerang-it/) Vishwanath S J > [“We, of all the beings that we know of, can think. We can eat, write, build, save. We can predict, estimate, and count. We…](https://sms4smile.com/quotes/tarun-betala/we-of-all-the-beings-that-we-know-of-can-think-we-can-eat-write-build/) [Tarun Betala](https://sms4smile.com/quotes/author/tarun-betala/) > [The Romans have provided a lot of writers with a model for various interstellar empires, of course, and no wonder. The Roman Empire is…](https://sms4smile.com/quotes/ann-leckie/the-romans-have-provided-a-lot-of-writers-with-a-model-for-various/) [Ann Leckie](https://sms4smile.com/quotes/author/ann-leckie/) > [“in an interstellar burst, i'm back to save the universe”](https://sms4smile.com/quotes/radiohead/in-an-interstellar-burst-i-m-back-to-save-the-universe/) [radiohead](https://sms4smile.com/quotes/author/radiohead/) > [The factor most ignored in discussing interstellar flight is the kinetic energy that must be invested in the ship to make its tons of…](https://sms4smile.com/quotes/anonymous/the-factor-most-ignored-in-discussing-interstellar-flight-is-the/) [Anonymous](https://sms4smile.com/quotes/author/anonymous/) ## More by Arthur C. Clarke > [Science can destroy religion by ignoring it as well as by disproving its tenets. No one ever demonstrated, so far as I am aware,…](https://sms4smile.com/quotes/arthur-c-clarke/science-can-destroy-religion-by-ignoring-it-as-well-as-by-disproving/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [We cannot predict the new forces, powers, and discoveries that will be disclosed to us when we reach the other planets and set up…](https://sms4smile.com/quotes/arthur-c-clarke/we-cannot-predict-the-new-forces-powers-and-discoveries-that-will-be/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [I am unable to distinguish clearly between your religious ceremonies and apparently identical behavior at the sporting and cultural functions you have transmitted to…](https://sms4smile.com/quotes/arthur-c-clarke/i-am-unable-to-distinguish-clearly-between-your-religious-ceremonies/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [I don't believe in astrology; I'm a Sagittarius and we're skeptical.](https://sms4smile.com/quotes/arthur-c-clarke/i-don-t-believe-in-astrology-i-m-a-sagittarius-and-we-re-skeptical/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [You can't have it both ways. You can't have both free will and a benevolent higher power who protects you from yourself.](https://sms4smile.com/quotes/arthur-c-clarke/you-can-t-have-it-both-ways-you-can-t-have-both-free-will-and-a/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [Astronomy, as nothing else can do, teaches men humility.](https://sms4smile.com/quotes/arthur-c-clarke/astronomy-as-nothing-else-can-do-teaches-men-humility/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [Nowhere in space will we rest our eyes upon the familiar shapes of trees and plants, or any of the animals that share our…](https://sms4smile.com/quotes/arthur-c-clarke/nowhere-in-space-will-we-rest-our-eyes-upon-the-familiar-shapes-of/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [“The universe is full of energy, but much of it is at equilibrium. At equilibrium no energy can flow, and therefore it cannot be…](https://sms4smile.com/quotes/arthur-c-clarke/the-universe-is-full-of-energy-but-much-of-it-is-at-equilibrium-at/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [“Here the trees surrounded them with an invisible, anechoic blanket, so that every word seemed sucked into silence the moment it was uttered.”](https://sms4smile.com/quotes/arthur-c-clarke/here-the-trees-surrounded-them-with-an-invisible-anechoic-blanket-so/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [“I’m a scientific expert; that means I know nothing about absolutely everything.”](https://sms4smile.com/quotes/arthur-c-clarke/i-m-a-scientific-expert-that-means-i-know-nothing-about-absolutely/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [There were some things that only time could cure. Evil men could be destroyed, but nothing could be done with good men who were…](https://sms4smile.com/quotes/arthur-c-clarke/there-were-some-things-that-only-time-could-cure-evil-men-could-be/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [“Pure coincidence, of course, but a sensible man makes coincidences work for him.”](https://sms4smile.com/quotes/arthur-c-clarke/pure-coincidence-of-course-but-a-sensible-man-makes-coincidences-work/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [They will have time enough, in those endless aeons, to attempt all things, and to gather all knowledge no Gods imagined by our minds…](https://sms4smile.com/quotes/arthur-c-clarke/they-will-have-time-enough-in-those-endless-aeons-to-attempt-all/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [“One thing seems certain. Our galaxy is now in the brief springtime of its life—a springtime made glorious by such brilliant blue-white stars as…](https://sms4smile.com/quotes/arthur-c-clarke/one-thing-seems-certain-our-galaxy-is-now-in-the-brief-springtime-of/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) > [Now I understand,” said the last man.](https://sms4smile.com/quotes/arthur-c-clarke/now-i-understand-said-the-last-man/) [Arthur C. Clarke](https://sms4smile.com/quotes/author/arthur-c-clarke/) [Explore all 415 Arthur C. Clarke quotes ](https://sms4smile.com/quotes/author/arthur-c-clarke/) ## More Interstellar quotes > [The factor most ignored in discussing interstellar flight is the kinetic energy that must be invested in the ship to make its tons of…](https://sms4smile.com/quotes/anonymous/the-factor-most-ignored-in-discussing-interstellar-flight-is-the/) [Anonymous](https://sms4smile.com/quotes/author/anonymous/) > [“in an interstellar burst, i'm back to save the universe”](https://sms4smile.com/quotes/radiohead/in-an-interstellar-burst-i-m-back-to-save-the-universe/) [radiohead](https://sms4smile.com/quotes/author/radiohead/) > [The Romans have provided a lot of writers with a model for various interstellar empires, of course, and no wonder. The Roman Empire is…](https://sms4smile.com/quotes/ann-leckie/the-romans-have-provided-a-lot-of-writers-with-a-model-for-various/) [Ann Leckie](https://sms4smile.com/quotes/author/ann-leckie/) > [“We, of all the beings that we know of, can think. We can eat, write, build, save. We can predict, estimate, and count. We…](https://sms4smile.com/quotes/tarun-betala/we-of-all-the-beings-that-we-know-of-can-think-we-can-eat-write-build/) [Tarun Betala](https://sms4smile.com/quotes/author/tarun-betala/) > [“Time throws you out of its dimensionless planar like a boomerang. It unites with you again in death.”](https://sms4smile.com/quotes/vishwanath-s-j/time-throws-you-out-of-its-dimensionless-planar-like-a-boomerang-it/) Vishwanath S J > [The simple truth is that interstellar distances will not fit into the human imagination.](https://sms4smile.com/quotes/douglas-adams/the-simple-truth-is-that-interstellar-distances-will-not-fit-into-the/) [Douglas Adams](https://sms4smile.com/quotes/author/douglas-adams/) > [We don't know how to identify intelligence over interstellar distances, so what we do instead is use technology for a proxy,](https://sms4smile.com/quotes/jill-tarter/we-don-t-know-how-to-identify-intelligence-over-interstellar/) [Jill Tarter](https://sms4smile.com/quotes/author/jill-tarter/) > [If interstellar travel is as time- or energy- demanding as the above figures indicate, it is far from obvious what the motive for colonization…](https://sms4smile.com/quotes/anonymous/if-interstellar-travel-is-as-time-or-energy-demanding-as-the-above/) [Anonymous](https://sms4smile.com/quotes/author/anonymous/) > [If the oncoming mutation to interstellar immortality is screwed up by the politicians, it will be because those of us who see the opportunities…](https://sms4smile.com/quotes/robert-anton-wilson/if-the-oncoming-mutation-to-interstellar-immortality-is-screwed-up-by/) [Robert Anton Wilson](https://sms4smile.com/quotes/author/robert-anton-wilson/) > [“Wealth ... or death. Those were the choices Gateway offered. Humans had discovered this artificial spaceport, full of working interstellar ships left behind by…](https://sms4smile.com/quotes/frederik-pohl/wealth-or-death-those-were-the-choices-gateway-offered-humans-had/) [Frederik Pohl](https://sms4smile.com/quotes/author/frederik-pohl/) > [Lots of science fiction deals with distant times and places. Intrepid prospectors in the Asteroid Belt. Interstellar epics. Galactic empires. Trips to the remote…](https://sms4smile.com/quotes/edward-m-lerner/lots-of-science-fiction-deals-with-distant-times-and-places-intrepid/) [Edward M. Lerner](https://sms4smile.com/quotes/author/edward-m-lerner/) > [One doesn't just wander unvetted into someone else's epic interstellar future history.](https://sms4smile.com/quotes/edward-m-lerner/one-doesn-t-just-wander-unvetted-into-someone-else-s-epic/) [Edward M. Lerner](https://sms4smile.com/quotes/author/edward-m-lerner/) > [“I can't be your ghost right now. I need to exist”](https://sms4smile.com/quotes/jonathan-nolan/i-can-t-be-your-ghost-right-now-i-need-to-exist/) [Jonathan Nolan](https://sms4smile.com/quotes/author/jonathan-nolan/) > [Love is the one thing we're capable of perceiving that transcends time and space.](https://sms4smile.com/quotes/russell-brand/love-is-the-one-thing-we-re-capable-of-perceiving-that-transcends/) [Russell Brand](https://sms4smile.com/quotes/author/russell-brand/) > [Scrape the surface of language, and you will behold interstellar space and the skin that encloses it.](https://sms4smile.com/quotes/velimir-khlebnikov/scrape-the-surface-of-language-and-you-will-behold-interstellar-space/) Velimir Khlebnikov [Browse all 72 Interstellar quotes ](https://sms4smile.com/quotes/about/interstellar/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Quotation", "text": "One theory which can no longer be taken very seriously is that UFOs are interstellar spaceships.", "creator": { "@type": "Person", "name": "Arthur C. 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