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re: I find the idea that we are alone in the universe, laughable
Posted on 4/22/19 at 10:12 pm to Kentucker
Posted on 4/22/19 at 10:12 pm to Kentucker
quote:
With current observations, it’s unlikely that our Universe is infinite. It appears to be a closed system that is expanding at an exponential rate.
On the other hand, there are indications that our Universe is part of a larger Multiverse which may be infinite.
If it is indeed closed, wouldn't that suggest there is something on the other side of whatever it is that is containing it? If it is expanding at an exponential rate, what is it expanding into?
It seems to me, there is no end to matter, there is no end space.
I can't understand how there can be an end to eternity. Whatever stops it must have an end too.
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Posted on 4/24/19 at 3:06 pm to MeridianDog
Find alien life? Hell it has found us with all these UFOs flying around, shooting air force planes out the air.
Posted on 4/24/19 at 5:10 pm to Vols&Shaft83
The Drake Equation.
The Drake Equation is partly based on conjecture, but because of the vast expanse of space, we may never really know whether or not extraterrestrial life exists.
The Drake Equation is partly based on conjecture, but because of the vast expanse of space, we may never really know whether or not extraterrestrial life exists.
Posted on 4/25/19 at 11:49 am to Themole
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If it is indeed closed, wouldn't that suggest there is something on the other side of whatever it is that is containing it? If it is expanding at an exponential rate, what is it expanding into?
In imagining the Universe, a person must suspend conventional logic. Not all logic, just that with which we’re familiar.
Whether or not the Universe is infinite, we live in a closed part of it which is defined by physical laws. We see a balloon expanding into the air around it, a cloud building in the sky, a supernova blasting into its surrounding spacetime. Something is expanding into something else. We experience this by observation and consider it to be conventional logic.
As a fundamental part of our Universe, it is spacetime that is responsible for expansion. Every other component of the Universe is expanding into it. Dark energy is driving this expansion at an exponential rate into spacetime.
Is spacetime expanding into something, too? There’s no evidence that it is and there’s no seeming requirement that something must exist for spacetime to occupy.
quote:
I can't understand how there can be an end to eternity. Whatever stops it must have an end too.
Is the Universe open (infinite) or is it closed? If it’s infinite, then there would need to be a source of energy/matter being generated to sustain it. Otherwise it would simply expand til every quantum particle was so far removed from every other particle that no interactions between them could take place and all movement would stop. Spacetime would end.
Since we don’t observe the generation of any energy/matter in our Universe, we apparently exist in a closed system that will eventually come to a complete stop. There is no eternity in this scenario.
However, there are strong indications that our Universe is but one of countless others that we call the Multiverse. Inflation Theory supports the idea of “pocket universes” like ours. It may be the Multiverse that’s eternal, after all.
This post was edited on 4/25/19 at 7:17 pm
Posted on 4/25/19 at 9:01 pm to Kentucker
I always look forward to your science/physics posts, Kentucker. Any guesstimate on what percentage of current cosmologists are leaning toward the Multiverse model?
Posted on 4/26/19 at 2:29 am to PhilipMarlowe
I’m halfway through that podcast and I love it. I’m fascinated with the Fermi Paradox and the idea of the Great Filter. Highly recommend that podcast. All 5 episodes have been entertaining and very intellectual.
Posted on 4/26/19 at 1:10 pm to Kentucker
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Multiverse
We have lots of scientists leaning this way to support their idea of a universe that wasn't created by a creator and that in our particular universe the laws of physics just so happened to line up perfectly so that life could occur.
I am not saying that we don't exist in a multiverse. It is possible that God created an infinite amount of universes or maybe just a few trillion or so but it is also possible and likely imo that he only created the one we live in.
Most scientists are willing to theorize some really off the wall things but even though we know the universe had a beginning they want people to believe that the universe created itself. Essentially that we got something from nothing.
Posted on 4/26/19 at 3:10 pm to SafetySam
quote:
Any guesstimate on what percentage of current cosmologists are leaning toward the Multiverse model?
I would guess almost all who have a broad knowledge of what we’re seeing in our place in the Universe. The more we learn about the observable Universe, the more it seems that we’re in a closed system that’s part of something even bigger.
After all, we can readily see that there was a starting point for our Universe. The Big Bang could easily be a “budding off” from another entity, perhaps another Universe.
With our current knowledge there also seems to be a definite end coming for our Universe. Dark Energy is propelling every bit of matter and energy in our Universe towards a maximum entropy that will ultimately result in the stoppage of all movement, the end of time for our system.
Posted on 4/26/19 at 5:02 pm to Commander Data
quote:
We have lots of scientists leaning this way to support their idea of a universe that wasn't created by a creator and that in our particular universe the laws of physics just so happened to line up perfectly so that life could occur.
Cosmologists don’t consider the idea of a creator of the Universe. That’s supernatural. They only study the natural, the observable. Philosophers and theists consider the supernatural, not scientists.
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I am not saying that we don't exist in a multiverse.
No one can say definitively that we do or don’t at this time. We can only postulate and then look for observations that say we do or don’t.
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Most scientists are willing to theorize some really off the wall things
Nature is stranger than we can imagine most of the time.
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even though we know the universe had a beginning they want people to believe that the universe created itself.
I don’t agree. The words believe and create are not used in official science research, at least not in the same context as they are in religion and philosophy.
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Essentially that we got something from nothing.
When perusing science studies, it’s best to think of “nothing” as “that which we have not yet detected.”
Anyone who preaches that something can come from nothing automatically invalidates any conclusions he might have drawn.
Posted on 4/26/19 at 11:25 pm to Vols&Shaft83
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it's ridiculous to think that only Earth contains intelligent life.
That’s intelligent life as we know it.
If our planet has been visited by aliens from afar they may not think there is intelligent life here.
They’ve come very far away, we’ve been to our moon.
I believe we have been visited thousands of years ago. Just too many mysteries.
Posted on 4/29/19 at 4:33 am to Nicky Parrish
Any of you fellas explain something I may have missed while listening to this podcast.
Episode 6-The LHC and the possibility of microscopic black holes. How would the existence of microscopic black hole on Earth prove the presence of other higher dimensions?
Episode 6-The LHC and the possibility of microscopic black holes. How would the existence of microscopic black hole on Earth prove the presence of other higher dimensions?
Posted on 4/29/19 at 9:51 am to Jasonmann
Did you intend linking the podcast? I’d like to listen to it.
One thought: If gravity is indeed a force, it may be far stronger in another dimension. A black hole may represent that dimension. If one can actually be created*, it would be a breakthrough in understanding not just how they form but what gravity is.
*The black hole would only last for a millisecond.
One thought: If gravity is indeed a force, it may be far stronger in another dimension. A black hole may represent that dimension. If one can actually be created*, it would be a breakthrough in understanding not just how they form but what gravity is.
*The black hole would only last for a millisecond.
Posted on 4/29/19 at 5:43 pm to Kentucker
It’s at the bottom of the second page of this thread. I’ve just been going through them on my ride into work. I get why it would only last a fractions of a second. I just don’t fully understand how it would prove the existence of other dimensions.
I’m certainly not versed well enough of physics and quantum physics but as a casual space/astronomy/end of the world conversations this podcast has given me new understanding of how everything around is connected even at the smallest level.
I’m certainly not versed well enough of physics and quantum physics but as a casual space/astronomy/end of the world conversations this podcast has given me new understanding of how everything around is connected even at the smallest level.
Posted on 4/29/19 at 6:49 pm to Jasonmann
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I just don’t fully understand how it would prove the existence of other dimensions.
It’s an interesting podcast and is done well. The interviewees are tops in their fields.
Back to gravity, it may very well be a dimension of its own. In fact, some theorists say that the very weak gravity (compared to the other known forces) we experience is “leaking” out of the dimension where it’s dominant. Black holes may be “pile ups” of gravity trying to get home, so to speak.
No one understands what gravity actually is. If we can mimic the conditions that form black holes, we are likely to understand what it is and whether it’s from another dimension.
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I’m certainly not versed well enough of physics and quantum physics but as a casual space/astronomy/end of the world conversations this podcast has given me new understanding of how everything around is connected even at the smallest level.
You exhibit the inquisitive mind of a physicist. If there is a philosophy that describes physicists, it’s reductionism. Every kid who wants to know how something works and what it’s made of is a physicist. Every adult who wants to know where he came from, what he’s made of and what that’s made of, is a physicist. Physics is a lifelong preoccupation. Some would say obsession, but that’s okay.
Posted on 5/2/19 at 9:12 pm to Vols&Shaft83
If there is intelligent life out there, we won’t be the ones who find it. We’re not smart or tough enough. A couple months in low G fricks up our bodies.
We’re polluting the tuck out our environment, whether you buy into global warming or not. We developed the technology to kill off our species, and instead of repudiating it, we embraced it.
Seriously, we are a fricking stupid, myopic species. Maybe the next dominate species on the planet will do better.
We’re polluting the tuck out our environment, whether you buy into global warming or not. We developed the technology to kill off our species, and instead of repudiating it, we embraced it.
Seriously, we are a fricking stupid, myopic species. Maybe the next dominate species on the planet will do better.
Posted on 5/3/19 at 8:48 am to Kcprogguitar
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Seriously, we are a fricking stupid, myopic species.
Yeah, we’re not handling success as a species very well. Hopefully we’ll last long enough to give rise to a successor species, A.I.
I think it’s the responsibility of any intelligent biological species to create an A.I. nonbiological lifeform that can spread into the Universe. That’s the only way direct contact can be made. Biological species simply can’t do it. Too many dangers in space travel.
Posted on 5/3/19 at 4:55 pm to Vols&Shaft83
But where are they?
Posted on 5/3/19 at 5:03 pm to MIZ_COU
quote:
where are they?
I don't think that there is a "they" but if I am wrong it is simple. They are bound by the same cosmic speed limit that we are and I think that intelligent civilizations are most certainly gonna go extinct long before the time it would take to be advanced enough to actually travel the stars. If they are out there, we just won't know about it.
Posted on 5/6/19 at 6:53 am to Kentucker
quote:
Kentucker
I'm curious, not really a serious question, but do you think that intelligent design is a possible explanation to the existence of life on our planet and/or other distant planets in distant galaxies?
Posted on 5/6/19 at 12:02 pm to Vols&Shaft83
quote:
do you think that intelligent design is a possible explanation to the existence of life on our planet and/or other distant planets in distant galaxies?
Intelligent Design (ID) is the theory that life, or the universe, cannot have arisen by chance and was designed and created by some intelligent entity; that life is so complex that it simply couldn’t have arisen by chance.
ID came about as an alternative to evolution when creationism was banned from public schools. Many people label ID as “stealth creationism.” God is seen as the intelligent entity who creates life and the Universe.
The problem with ID, as I see it, is that it offers an “escape clause” for the tough questions with which science deals, just as does Creationism. If a question arises that is very sensitive and may have significant social implications, the temptation to assign its answer or reason to God, or the intelligent entity, instead of continuing to explore it scientifically is too great.
“God did it,” or, “the Intelligent Designer did it so I’m satisfied with it,” cuts off scientific exploration. That’s intolerable.
Additionally, ID is a deflection from scientific exploration. It’s a stopping point, and science doesn’t have any stopping points. “Who designed the Intelligent Designer?” is an obvious first question from anyone who objects to ID.
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