My theroy on space and life in it

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PublicSecrecy
Some guy posted some crazy **** in the convo forum (no offense to whoever it is) about how there was probably a civilization on the Earth before us. Um, yes the Universe is 14-15 billion years old, and yes earth is 4-5 billion years old...but how could we have gone through so many generations of exploring and only come up with neanderthals and primates and dinosaurs? It's almost innevitable that we'd eventually find some peice of a lost billion year old civilization. and lets not forget that the earliest forms of life discovered originated between 1-2 billion years ago. Don't you just love shell fish?

[Edit] Oh and don't forget that since we're 1 astronomical unit away form the sun now, 5 billion years ago, we'd be about 1/2 as far away, and the sun would have been bigger, and the Earth would have still been forming. So because there was nothing to stand on (ala hot molten magma everywhere) and many of the gasses that were on Earth were barely breathable, it is extremely unlikely any form of life would have formed.

I am not ver smart about this stuff, but 5 billion years ago wouldn't the sun have been half as big. I thought as a star, like the sun, cooled down it grew in size and eventually it will grow so big it will engulf, or "suck in," the earth.
 
Um...the bigger the star the hotter it is. A quasar is almost 1 million times the size of the sun and emits 100 million times the energy in one second that our entire sun does in a life time. And our Sun is a medium sized star, which means even a supergiant (not to be confused with a quasar) is almost 100,000x hotter and are usually blue or light blue. I think Vega is one of the biggest stars out there.
 
"The surest sign that there is other intelligent life in the universe is that none of it has tried to contact us." - Calvin and Hobbes

This is so true.
 
I wonder whats OUTSIDE the universe, if it doesnt expand infinitely... What's beyond that? Is there an EDGE to the universe?

Think about THAT one for a change.
 
Acid X
I wonder whats OUTSIDE the universe, if it doesnt expand infinitely... What's beyond that? Is there an EDGE to the universe?

Think about THAT one for a change.

I was just about to post that when I was reading this thread. It's questions like this which humans are not supposed to know. Reading this topic has sent a chill down my spine as I ponder what could possibly lie beyond our universe and amongst the stars we see every night. What freaks me out the most is that if we could travel outside the universe what exactly we could find. It could be something so intense that the human brain wouldnt not be able to process all the information which would result in a quick death. Now...I'm going to try to sleep without thinking about this topic.... :scared:
 
I wonder whats OUTSIDE the universe, if it doesnt expand infinitely... What's beyond that? Is there an EDGE to the universe?

Think about THAT one for a change.

You're still thinking about things in 3D. It's possible that the universe is finite but that reality does not exist outside of the universe. It's possible that nothing exists outside a finite universe and that nothing can exist out there. In otherwords it would not be possible for us to travel outside of the universe - but it's not like space has an edge to it. Think of it as though space is wrapped around a sphere. We'd just keep going in one direction and come right back around to ourselves. Now pretend that that could happen if we traveled in any direction.

As to us living alongside Dinosaurs, I doubt it, they were keeping small mammels in check and I doubt mammels would have had the chance to evolve into intellegent life with such a constant threat.

No way, that would totally have been possible. You "doubt mammals would have had the chance to evolve"? They had already evolved and were continuing to evolve. It's not like you have to be on the top of the food chain to evolve. In fact, more evolution occurs (because more natural selection occurs) if you're not on the top of the food chain. I see no reason why mammals couldn't have developed larger brains while many of them were getting killed by the dinos.

I think it would be very difficult for a dinosaur to become intellegent, first of all the were pretty dumb to begin with,

So were mammals.

I think it's almost impossible for the brain of a dinosaur to get enough energy to perform complex problem solving tasks

Without the dinosaurs evolving to have larger brains we know for a fact that they didn't have enough to solve complex problems. But if they EVOLVED then they might have become even more intelligent than we are.

Mammals didn't have brains capable of solving complex problems either when they started out, but they evolved to have brains capable of that over millions of years. The same could have happened to the dinos, they just got wiped out before they had a chance.
 
DANOFF
You're still thinking about things in 3D. It's possible that the universe is finite but that reality does not exist outside of the universe. It's possible that nothing exists outside a finite universe and that nothing can exist out there. In otherwords it would not be possible for us to travel outside of the universe - but it's not like space has an edge to it. Think of it as though space is wrapped around a sphere. We'd just keep going in one direction and come right back around to ourselves. Now pretend that that could happen if we traveled in any direction.


You mean like in the Mario Bros game, or in the tube station in the Matrix Revolutions?
 
like the multiplayer mario bro's level. I love that level. I always win. or in pac man! pac man does that too. But think about it, what could possibly be outside of "space" if there is? What if it's like in MIB and we're all in one small marble? God I hate this stuff. It drives me crazy. It like pisses me off because you just can't comprehend all the distances and sizes and times, it makes me wanna shoot myself or something.
 
danoff
No way, that would totally have been possible. You "doubt mammals would have had the chance to evolve"? They had already evolved and were continuing to evolve. It's not like you have to be on the top of the food chain to evolve. In fact, more evolution occurs (because more natural selection occurs) if you're not on the top of the food chain. I see no reason why mammals couldn't have developed larger brains while many of them were getting killed by the dinos.
The evolution would have been to keep themselves alive. What chance would we have in a world full of dinasours (as in Stone Age Men)? We're not fast, spears would do very little to a big dinasour and we have no physical way to fight a big-ish dinasour. I think small mammels would have evolved in a way which would keep them alive, eventually so they could physically dominate. At least that's my opinion.

Blake
 
PublicSecrecy
like the multiplayer mario bro's level. I love that level. I always win. or in pac man! pac man does that too. But think about it, what could possibly be outside of "space" if there is? What if it's like in MIB and we're all in one small marble? God I hate this stuff. It drives me crazy. It like pisses me off because you just can't comprehend all the distances and sizes and times, it makes me wanna shoot myself or something.


The distance and sizes are astronomical. It had taken something like 30 years for the Pioneer shuttles to leave the Solar system. Of coarse they are of lesser technology than what Nasa has today. Incidentally those ships would reach Alpha Centauri in around 2 million years. I don't think we will be able to go faster the 300'000 mph which is around 1.5 times faster than the fastest human made object. I can't really see us ever leaving the Milky Way, unless 'worm holes' are a reality which is straight out of Sci Fi.
 
PublicSecrecy
Um...the bigger the star the hotter it is. A quasar is almost 1 million times the size of the sun and emits 100 million times the energy in one second that our entire sun does in a life time. And our Sun is a medium sized star, which means even a supergiant (not to be confused with a quasar) is almost 100,000x hotter and are usually blue or light blue. I think Vega is one of the biggest stars out there.
No, the biggest stars known are usually red giants like Betelgeuse and Antares which have a surface temperatue of about 3000-4000K. I don't think that Quasars are classified as stars at all, I think they're a bit of a mystery,

Small stars can be very hot like white dwarfs or relatively cool red dwarfs, enormous stars can be white or blue hot, but the biggest are generally red supergiants.

There's no stars that are 100,000x as hot as the sun. The sun has a surface temperature of about 7,000K. That would mean that some stars have a surface temperature of 700,000,000K, which is definitely not true. The very hottest stars are only a few times as hot as the sun.

I think you might be confusing how hot a star is with how much energy it radiates. An enormous star which is cooler than the sun can radiate far more heat and light than the sun just because it's got such a huge surface area for radiating heat. A huge star might easily emit 100,000 times as much energy as the sun, but it mightn't have a surface temperature any higher the sun's.


KM.
 
The evolution would have been to keep themselves alive. What chance would we have in a world full of dinasours (as in Stone Age Men)? We're not fast, spears would do very little to a big dinasour and we have no physical way to fight a big-ish dinasour. I think small mammels would have evolved in a way which would keep them alive, eventually so they could physically dominate. At least that's my opinion.

I don't think there's any way that they could evolve to physically dominate. They were too far behind. It's more likely that they would evolve to be intelligent - crafty, find ways to avoid the dinos and feast on lower animals - then go back to their caves or whatever.
 
danoff
I don't think there's any way that they could evolve to physically dominate.
Elephants would have a chance at doing that....of course unless mammels got some sort of foothold evolution like that would be unlikely to occur, but they did, and it did.

Blake
 
cool topic, I always enjoy these discussions.

first off, yes I do believe there's got to be something else out there.
As for their appearance, I do believe they will be portrayed in the typical grey man with big eyes image, although colour and size of eyes i don't necessarily agree with, they will be similar to us. I'll put it like this. Every animal on this planet evolves in order to survive. Based on what you're initially given, you use that in order to survive. Dinosaurs used brute strength(in most cases), birds use their wings in order to avoid predators and to get prey. In all cases, they evolve in order to survive. When it goes with monkeys(where humans evolved from), their bodies are not overly superior to any other animal. They can climb trees well and have some strength but that's about it. In order for them to survive they have to use their brains and still do. I was watching this nature show and was amazed at how well Monkey's hunt in groups. It was almost like watching a war movie where they would identify their prey, analyze the lay of the land, move themselves into proper position and then go in for the kill. They basically cornered a smaller animal so that there was no way to escape. Most other animals I know of don't hunt like this in groups, but rather focus in strength in numbers (wolves, tigers, etc.) rather than careful planning. This is how I believe we evolved, as they got smarter and smarter, the need to have bodies designed to climb trees or have stronger bodies was no longer needed. Our bodies of today are very simple as the need to be predators is no longer needed. We do not have superior strength, speed, agility, dexterity, vision, hearing, claws, etc. Why? because we dont' need it, we're too smart for that, we accomplish all those things through other means.

This is why I believe in the little grey man, a being that is intellectually superior to ours would most likely be very similar to ours, but physically weaker. They won't have 8 legs like insects because they don't need it, they won't have wings because they don't need it. No superior strength, no superior vision. Just a basic body that it needs to survive. Arms and hands to create tools, legs to walk around and a big brain cuz they're more intelligent. But smaller than us cuz if you're that smart, you don't need to worry about size. Any other animals messes with you, you just use your brain.
 
and what? levitate it away from you? :lol: sorry i couldn't resist. As for the larger brain thing, our brains have gotten smaller the more advanced we are. But i do agree on most on most of your post that if something were genetically more evolved than us, it would be physically weaker, although much better at problem solving and analytical thought. As for the animals part, one small nit-picky thing....tigers are solitary. but other than that I think thats pretty much the bang-on hypothesis. Oh, and apparenlty the more evolved we've gotten much taller. Seeing as we live in a pretty warm climate, a tall person dissipates heat better and thus has less problems of getting some heart problem or w/e. You know what I mean. That's (from a scientific standpoint) probably why black/african people are so tall most of the time, is because A) lots more sun and B) much hotter in africa and the middle east. I think eventually man kind will just be one really tall skinnyass smart brown man or woman, as eventually all or most different ethnic cultures will meet and become one.
 
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