“Of course there is. You’re not a fortune teller, so you have no idea what the ultimate fate of the human race will be, with or without colonizing other planets.”
That is nothing more than a bunch of absurd nonsense. No one has to be a “fortune teller” to know with certainty that all humans on the Earth are destined to become extinct. No one has to be a “fortune teller” to know with certainty that the Human species has an opportunity to survive indefinitely if and when Humans successfully colonize the outer Solar System with a population larger than their present day population on the Earth.
“You assume that we must colonize other planets or face doom, because you require that assumption to make the rest of your arguments.”
Again, you are demonstrating your arrogant disregard for the truth by jumping to baseless and erroneous conclusions. I never said that we “must” colonize the other planets. On the contrary, the colonization of Mars in my opinion may be useful as an outpost for resources, but I doubt it is much more of a survivable long-term habitat than the Earth. Any Human population living on Mars is destined to become extinct in the aftermath of the inevitable cataclysms which will befall Mars as they are destined to befall the Earth. To survive indefinitely, the Human species must colonize the asteroids and perhaps some of the Kuiper Belt Objects, and perhaps some of the minor planetoids in the outer Solar System. Once the Human species has successfully colonized and inhabited a thousand and more asteroids in the outer Solar System, no single cataclysm destroying its Human population can threaten the extinction of the entire Human species. The Human inhabitants of the Earth eventually face certain doom, because the Earth’s biosphere is destined to be destroyed with 100 percent certainty. That is a simple scientific fact requiring no “fortune telling” whatsoever.
“No one has to be a “fortune teller” to know with certainty that all humans on the Earth are destined to become extinct.”
Ah, but you are making more than just that assumption.
You’re assuming that this will happen soon, so that we have to pursue space colonization now, while the probabilities are very much NOT in favor of that scenario. You’re also assuming that pursuing space colonization now won’t lead to some scenario that CAUSES our extinction, which is entirely possible. You want to colonize space, so you shape your arguments around your subjective desires, rather than evaluating things objectively.
“Once the Human species has successfully colonized and inhabited a thousand and more asteroids in the outer Solar System, no single cataclysm destroying its Human population can threaten the extinction of the entire Human species.”
More assumptions, as you don’t even know that this would be possible to achieve, much less that it would be the best use of our resources to ensure the survival of the human race. The simple fact is that we know of exactly ONE location in the entire universe that is actually capable of sustaining human life, and we already live there.