How Far Can We Go? Limits of Humanity - In a Nutshell
70 replies, posted
[video=youtube;ZL4yYHdDSWs]https://www.youtube.com/watch?v=ZL4yYHdDSWs[/video]
there has never been a kurzgesagt video that i haven't enjoyed
I really do prefer the old art style, rounded boxes et cetera.
Reminds me of a picture I took a few nights ago from an area near me, it was horribly light polluted but I still got a few galaxies in here. Center in this image is M86 which is part of the virgo cluster, you can see a few other galaxies in here too, they look like fuzzy stars.
[thumb]http://puu.sh/oMDia/c747e974e5.png[/thumb]
I guess our only hope are wormholes now
[QUOTE=mecaguy03;50307622]Reminds me of a picture I took a few nights ago from an area near me, it was horribly light polluted but I still got a few galaxies in here. Center in this image is M86 which is part of the virgo cluster, you can see a few other galaxies in here too, they look like fuzzy stars.
[thumb]http://puu.sh/oMDia/c747e974e5.png[/thumb][/QUOTE]
that's really fuckin cool
I love Kurzgesagt's videos on space.
They succeed at making me feel pathetic and worthless far more than any emotional film or song ever could!
The first 75% of that video covers your basic intro to astronomy class at universities fyi. Sprinkle in some earth history (astronomers), element formation, and red/blue shift and thats all you need to know really
[QUOTE=God of Ashes;50307852]that's really fuckin cool[/QUOTE]
i know, it's like seeing one small dot that has very faint and small detail that signifies what it is but the added mystery that's caused by the lack of detail on it adds to the feeling of "holy shit, that one small dot is a whole fucking galaxy that has hundreds of billions of copies of what keeps us alive and is tens of thousands of lights years wide and is so far away from me that i can't even begin to imagine the distance"
this is why i love astronomy
That was pretty depressing tbh
I feel this needs to be posted again:
[video=youtube;p86BPM1GV8M]http://www.youtube.com/watch?v=p86BPM1GV8M[/video]
Is the nearest local group actually receding so fast that we wouldn't be able to catch it even at relativistic speeds?
At the speeds science and tech moves forward today I wouldn't be surprised if we could traverse the entire universe in a billion years, our understanding of physics would probably be very different from now.
To Wallmart and back home.
I wish Carl Sagan was still alive so I could hear him talk more about space
[QUOTE=Gmod4ever;50307910]I love Kurzgesagt's videos on space.
They succeed at making me feel pathetic and worthless far more than any emotional film or song ever could![/QUOTE]
Even more than Michael from VSauce? Doubt that.
[QUOTE=Plaster;50308310]Even more than Michael from VSauce? Doubt that.[/QUOTE]
Vsauce just leaves my brain feeling numb.
That's a far cry from the endless pit of despair that replaces my heart after watching a Kurzgesagt space video.
[t]http://i.imgur.com/isPVBxd.jpg[/t]
It's not impossible though, you just have to build speed up for 12 years and jump Parallel Universes, or PUs. Just have to watch out to not misalign your QPU grid or you could get stuck with misaligned PUs
[QUOTE=Plaster;50308310]Even more than Michael from VSauce? Doubt that.[/QUOTE]
What? :v:
Michael just leaves me feeling enlightened, he always points out interesting things and talks about confusing paradoxes.
if we could travel faster than light, how could we not explore other local groups?
[QUOTE=SpaceGhost;50310096]if we could travel faster than light, how could we not explore other local groups?[/QUOTE]
Fairly certain this video makes the assumption that we can't do FTL. The universe is expanding faster than the speed of light, thus unless wormholes become practical, hell just even observable, we can't make it to other local groups.
If there can be established an intelligible causal story linking our local group to the other then, given enough information, we could get information from the group. Depending on the nature of determinacy or otherwise the ability to paint a backwards, and perhaps forwards, causal story, humanity could access not only 'information' about other local groups, but also the constituency of lifeforms that may live there. By constituency I mean a literal 3d model ala Star Trek teleporter. Using that they could create, using whatever matter and energy is left in our local group, new copies of those beings, and even of our own dead. Ultimately we would likely evolve to crystalize the information that describes us into some sort of structure that is small enough to not collapse under it's own weight, but large enough to house information and passively excite it via the occasional encountered particle. This structure would be launched into intergalactic space and drift forever.
[QUOTE=maeZtro;50308196]At the speeds science and tech moves forward today I wouldn't be surprised if we could traverse the entire universe in a billion years, our understanding of physics would probably be very different from now.[/QUOTE]
It's a nice thought, but I think it's rather too optimistic. Relativity started as an observation on electrodynamics of moving objects, and has continually stood up to every test we throw at it. There is no hint that it's incomplete or will break. It's used as the foundation of theories which have predicted new phenomena with an accuracy far, far beyond everyday experience.
A billion years is a long time, but I think learning to respect the universe and our existence for what it is is a more worthwhile endeavor than hoping things will change radically.
[QUOTE=SpaceGhost;50310096]if we could travel faster than light, how could we not explore other local groups?[/QUOTE]
He says in the beginning that this is based on our current understanding of physics. Our current understanding of physics makes FTL travel exceedingly unlikely.
[QUOTE=JohnnyMo1;50310667]It's a nice thought, but I think it's rather too optimistic. Relativity started as an observation on electrodynamics of moving objects, and has continually stood up to every test we throw at it. There is no hint that it's incomplete or will break. It's used as the foundation of theories which have predicted new phenomena with an accuracy far, far beyond everyday experience.
A billion years is a long time, but I think learning to respect the universe and our existence for what it is is a more worthwhile endeavor than hoping things will change radically.
He says in the beginning that this is based on our current understanding of physics. Our current understanding of physics makes FTL travel exceedingly unlikely.[/QUOTE]
one more question. so the closest galaxy outside our local group is ~2000 kpc. so that means it's moving away from us at about 150 km/s. nowhere near relativistic speeds; so couldn't we catch up to it? i could be calculating this wrong, but for us to [I]not[/I] be able to reach something wouldn't it need to be about 4,200 megaparsecs away from us (traveling ≥ c)? which is much further than the Maffei group is from us, so couldn't we go there?
Are we anywhere near close to understanding and creating FTL travel? if that is even possible of course.
I would happily volunteer to be put into stasis (or cryosleep) and be shot off to a distant earth-like planet thousands of light years away to form a new colony.
1) I'd have the hope that our technology would become so advanced in the time I was asleep that by the time I reached the new planet, or - better yet - during transit, humans would come and wake me up and be all "yo check this cool shit out, we have microwaves that can instantly form sickass food"
2) even if that didn't happen, it'd be so cool starting up on a brand new world with the technology we have today and just terraforming it
Come on alien fuck bois, come visit us and give us cool shit so we can explore.
Its really depressing though, i never knew anything like that.
[url]http://www.atlasoftheuniverse.com/[/url]
If it helps
[QUOTE=GoDong-DK;50308127]Is the nearest local group actually receding so fast that we wouldn't be able to catch it even at relativistic speeds?[/QUOTE]
Nah once we achieve faster then light travel we probably could
Honestly interplanetary travel gets me way more excited than interstellar or intergalactic travel. An interstellar civilization isnt even that great because of how far away it would be from its other home system, in an interplanetary civilization it is much easier to do things like travel and share resources. There is also the fact that if humanity can figure out how to become self-sufficient in space, then it can survive almost anywhere.
[QUOTE=JohnnyMo1;50310667]It's a nice thought, but I think it's rather too optimistic. Relativity started as an observation on electrodynamics of moving objects, and has continually stood up to every test we throw at it. There is no hint that it's incomplete or will break. It's used as the foundation of theories which have predicted new phenomena with an accuracy far, far beyond everyday experience.
A billion years is a long time, but I think learning to respect the universe and our existence for what it is is a more worthwhile endeavor than hoping things will change radically.[/QUOTE]
Yes our idea of relativity is very accurate and it might even be complete, but there are so much we don't know or completely understand. There are many breakthroughs to come in other fields that might overlap and in a billion years we might have completely new methods of moving around. You know your stuff and I'm probably too optimistic but I'm not ready to give up on the idea of being able to move further than they say in the video completely. We (as in you and I) will almost certainly don't find out if I'm right though so in that sense I respect our existence for what it is.
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