Ask HN: Do You Believe in Aliens? | Hacker News Reader

Ask HN: Do You Believe in Aliens?

Yes I do. Earth is proof life can exist in this universe (obviously). It seems reasonable a basic form of life exists elsewhere.

I don't think we will ever observe alien life as it's too hard. Other solar systems are too far away, let alone other galaxies. We can't even properly observe nearby planets such as Venus.

Some scientist recently said Aliens are near & many major publications covered it. Not sure if we will see them but it'll be fun if we can at least before we die lol

Yes, I believe extra terrestrial life exists but there are significant known barriers that prevent our contact with interstellar species currently. I believe with enough time, we can get past these barriers through technological means.

However, given the age of the universe, there is strong reason to believe that other species somewhere else have likely crossed these barriers but run into another set of constraints which we simply can’t comprehend yet. These could be physical, philosophical, or even metaphysical barriers which prevent contact.

I hoped that in my lifetime we would have made more progress but it may take a few more human lifetimes before we get there, barring a breakthrough which helps leap frog our current understanding.

Damn, that's a good point you made. I also want to see aliens. But they surely aren't living on Mars otherwise Elon would've saw it. Do you think they are further beyond the planets we can observer? Or they just aren't visible?

The universe is so big it seems highly likely

It is also so old that intelligence may come and go without ever really overlapping.

This line of reasoning never made sense to me. The speed of light prevents there from being calamities that can wipe out an entire star-faring civilization at once. Once intelligent life has spread throughout a region of space beyond a few light years, I don't see how extinction is possible.

Because there is zero proof that species will get past the point where they can start moving between the stars. If you're willing to take it as read that every species that is intelligent (or even most of them) will eventually make it to that stage then yes, your other point will hold as well. But that's a huge assumption that may not necessarily turn out to be true.

> Because there is zero proof that species will get past the point where they can start moving between the stars.

The feasibility of interstellar space travel is an unknown unknown. We have so much more to understand about our universe and our world before we can even cast doubt on whether it's possible or not. When we don't even know what 85% of the universe consists of, much less lack a unified field theory, we just don't yet have the knowledge to make bold assertions on this topic.

Yes, that is yet another assumption. In general any conversation about such stuff should start out with stating clearly what your assumptions are. Since the GGGP started out with interstellar travel as assumed I felt no need to fix that (and technically, voyager qualifies as an interstellar spacecraft at this point in time, even if it is an unmanned one). But you are 100% right, interstellar travel by intelligent beings should definitely not be assumed until there is proof of it actually happening and/or being done.

Even Musk's 'Starship' is incorrectly named.

Fair :)

We are within a century of achieving that capability. The SpaceX Starship is sufficient to expand into the galaxy, even if just by the slow pace of island-hopping through the Oort cloud. We just need to achieve an in-space capability for Starship construction and maintenance, which is achievable on that timeline.

You can not possibly make that claim with any degree of certainty. The difference between going to Mars and going to even the nearest star with a manned spacecraft is roughly equivalent to the difference between 'science' and 'science fiction'.

This IS my field, and I can make that claim. The Starship is designed to operate as a reusable, in-situ refutable vehicle in the regime of <4km/s delta-V trajectories. That is sufficient to get anywhere through staging, using other starships as tankers. It is designed for this.

By analogy it's like pointing out that an off-road jeep is sufficient to get anywhere on Earth, even with only a 300 mile range, because jeeps can carry supplies and/or an extra tank of gas as its cargo instead of people, with staging outposts (gas & maintenance stations) setup and supplied every few hundred miles.

> This IS my field, and I can make that claim.

You can make the claim that it is your field, which makes it a simple appeal to authority. But that doesn't make your claim true. There are lots of people in lots of fields that make claims that turn out to be bogus and this - to me - seems to be one of those.

If you honestly believe that we have solved all the interesting problems in interstellar travel and it's 'a mere matter of engineering' then that's fine with me, you're going to have to live with me not believing you.

Best of luck, and - FWIW - I hope you succeed but I highly doubt that you will, the whole 'we are less than a century away from X' stuff is exactly why I say it is science fiction and not science, you can't possibly know the future to that degree.

I made no such claim that we have solved all interesting problems. Merely that the self-sufficiency that could be achieved on such a timescale would be sufficient to support limitless expansion into the cosmos. It’s the bare minimum, if you will.

Sure. The real question is over what timescale we're likely to knowingly encounter some.

That's basically my view.

It probably takes a long time for intelligent life (or intelligence in a form we are able to recognize, anyways) to evolve on any planet. If we don't see signs of it, it must be because the universe is still too young (and considering signal from a planet a million light years away won't arrive till as many years pass).

Millions of years from now, one will be able to scan the heavens and find signals of tens of thousands of far-off civilizations.

I believe in much stranger things that are inclusive to aliens.

Yes, I also think first intelligent contact will be life forms with different physiology than us somehow

Yes.

Maybe they won’t look like us. I have to constantly tell myself to deprogram myself the X files et al image of ‘aliens’.

I always imagine that the first alien life forms we find will be incredibly simple maybe single celled or primitive multi-celled organisms.

Me too. But it is also possible that there will be sentient and intelligent alien life form out there. Not sure if they’d be curious or friendly.

According to USG, I'm a Resident Alien.

https://www.irs.gov/individuals/international-taxpayers/dete...

Is there life in the universe? Almost certainly.

Is there intelligent, technological life in our galaxy? Maybe.

Have we been visited by aliens? Inconceivable.

You keep using that word. I do not think it means what you think it means.

I know damn well what it means. It is inconceivable that we are visits by intelligent alien beings that Hoover up rednecks to do some anal probes without leaving any kind of evidence of their presence or method of transport into the system.

Lmao!

1. I was making an allusion to Inigo Montoya from the Princess Bride.

2. If a person truly believes that then I think they suffer from the same lack of imagination as Vizzini.

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