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THE Stephen Hawking Thread (merged)

What's on your mind?
General interest discussions, not necessarily related to depletion.

Re: Stephen Hawking says humans must go into space

Unread postby whereagles » Wed 14 Jun 2006, 06:47:38

Are we alone in the universe?

For recent ideas on the subject, check this:

http://arxiv.org/abs/physics/0308078
http://arxiv.org/abs/physics/0605096
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Re: Stephen Hawking says humans must go into space

Unread postby EnergyUnlimited » Wed 14 Jun 2006, 11:11:46

$this->bbcode_second_pass_quote('untothislast', 'B')art's robot friend has taken leave of his senses.

We OWE it to the rest of the universe, not to export our addled and exploitative value system away from the planet which gave it birth. It needs to die here.

Otherwise, it's called metastasis.


You are correct.
Life is a cancer on "body" of Universe.
Intelligent forms are metastatic phases of its developement.

Note that:
Cancer does not care about wellbeing of its host, it is incurable and will die with host.
We do not owe anything to Universe. We will exploit as much as we can.
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Re: Stephen Hawking says humans must go into space

Unread postby Atlantean_Relic » Wed 14 Jun 2006, 11:12:28

Okay my head hurts, If what the first scientist said is true how do we even know anything we observe in space is real? What if all that dark matter we don't see is just star they decided to hide? It would also mean that the brane model is just what ET want us to believe. Okay how is this any less silly than the gods of old???
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Re: Stephen Hawking says humans must go into space

Unread postby AtmaStorm » Wed 14 Jun 2006, 11:23:36

Space, eh? :roll:

Untothislast is right; metastasis.
If we want to survive, we need to change ourselves.

BTW, Plant don't turn CO2 into O2. They actually split the water molecule and release O2 that way. You can read about it on wikipedia in photosynthesis.

Terraforming Mars: Here's an idea! Let try earth! Yeah! :x
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Re: Stephen Hawking says humans must go into space

Unread postby EnergyUnlimited » Wed 14 Jun 2006, 11:36:42

$this->bbcode_second_pass_quote('arretium', 'S')o what is the brane world scenario?


I googled it and read enough to realize I needed someone to help explain it to me. Anyone know anything about this topic that can provide information in layman's terms?


Brane theory provide for being called Multiverse (this term is also used in yet another theory - please do not confuse).

Multiverse provides space for many universes and our Universe is one of them. However it is multidimensional HYPERSPACE.
Mathematically these universes can be described as branes separated by kind of hyperspace. Each brane-universe unit will have different rules of physics.
Entire concept allow to get rid of so called Thermal Death of universe problem.
Even if our Universe will eventually die, the big Multiverse will still thrive ethernally and give birth to countless new Universes.
Big Multiverse would not be bothered with conservation rules.
Some unknown "hyperphysics " would be applicable there and they are likely to be limits on learning about it by us.

Now for doom, doom, doom... peoples:
From time to time branes (and our Universe is one of them) may collide and rules of physics from both worlds would contend.
You will not survive that (needless to say) and there will be no notice.
Hovever it would be fast (at speed of light) way to go and you would be denied admiration of the END.
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Re: Stephen Hawking says humans must go into space

Unread postby grabby » Wed 14 Jun 2006, 11:42:52

Mutations are almost always bad in the last 2000 years all observable mutations have damaged and limited the organism.
It is a false premise that says mutations are good, it is non scientific an undemonstrable.

If you have 2 million line code in windows and you randomly go in and change ONE BYTE ANYWHERE

it will far more likely to be bad good.

you will not get a new subroutine that calculates pi.

you will get a subroutine that crashes.
so with humans

the mutation to improve humans is false.

2. Radiation in deep space is deadly. cosmic rays are plentiful
yo would not survive to the stars.

Lead in space? that oughta be good for acceleration.

you C CANNOT GO TO THE STARS ON FUSION!
It is a mathematical impossibility.

antimatter is the only option and you wont see it in our era.
ergo after peak there is no more star attempts.


with reactive engines? (shooting matter or light out the back)
with a nice heavy ship youll go no where.

those who think we are going to the stars are wrong.1. we are not going to the stars.
2. Harry putter is not real
3. Star trek is a fantasy designed to sell gillete shaving blades.

wake up your about to run out of il.

going to space will save nothing.

3. Food mutations are never good. When the astronauts came back from the moon they isolated them for 2weeks and sterilized them so no plant mutation would WIPE OUT THE PlANET FOOD CHAIN they undserstood.

now that moonsanta is randomly mutating AND PLANTING plants without knowing what will happen this is GOOD?
mankind has a high likelihood of neutralizing our food supply and killing us.
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Re: Stephen Hawking says humans must go into space

Unread postby grabby » Wed 14 Jun 2006, 11:55:42

there is an old joke telling about a drunkard who was finally weakening and vomiting blood. His wife convinces him to see the doctor and after a few tests, the doctor say, "Harry, your going to have to give up drinking or die!"
Harry says"Ok, doc."
On the way hom, his wife asks, "What did the doctor say, Harry?"
Harry says,," I'm gonna die."


hawking says if we don't go to the stars we are going to die.
Well, we are not going to the stars with these bodies susceptible to radiation and disease.

Hawking does have a clue on the final outcome for most of us though.
Last edited by grabby on Wed 14 Jun 2006, 12:38:43, edited 1 time in total.
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Re: Stephen Hawking says humans must go into space

Unread postby EnergyUnlimited » Wed 14 Jun 2006, 12:15:10

$this->bbcode_second_pass_quote('whereagles', 'A')re we alone in the universe?

For recent ideas on the subject, check this:

http://arxiv.org/abs/physics/0308078
http://arxiv.org/abs/physics/0605096


Interesting papers, however i have difficulty to buy some suggestions presented.
Authors do all possible tricks to save beloved anthropic principle.
This principle is not necessarily valid or not understood well.

My beliefs are going about this way:

1. Interstellar travel may be an extremely rare event (if possible at all), therefore it is very unlikely, that we will ever meet aliens.

2. Technolical civilizations may be extreme rarity.
We may be one of very few (or the only one) in our Galaxy (and may be even in Universe).

3. Technological civilizations will not last long if fusion is a viable source of energy PROVIDED that you have star sized reactor (rwff mentioned that). I DO NOT see a way to run technological civilization for milions of years if fusion cannot be a commercial source of energy.
There may be no go areas here due to "material science" problems, not solvable regardless how advanced you are.

4. Galaxy wide: "there is a plenty of protoplasma around but no one to talk to".
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Re: Stephen Hawking says humans must go into space

Unread postby EnergyUnlimited » Wed 14 Jun 2006, 12:18:15

$this->bbcode_second_pass_quote('grabby', 't')here is an old joke telling about a drunkard who was finally weakening and vomiting blood. His wife convinces him to see the doctor and after a few tests, the doctor say, "Harry, your going to have to give up drinking or die!"
Harry says"Ok, doc."
On the way hom, his wife asks, "What did the doctor say, Harry?"
Harry says,," I'm gonna die."


hawking says if we don't go to the stars we are going to die.
Well, we are not going to the stars.

Hawking does have a clue on our final outcome though.


We will die REGARDLESS do we go to stars or not.
If we do, we may die later (but still).
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Re: Stephen Hawking says humans must go into space

Unread postby MonteQuest » Wed 14 Jun 2006, 13:12:10

$this->bbcode_second_pass_quote('EnergyUnlimited', 'M')onteQuest,
Not necessarily so ignorant.


Oh very, the hubris is incredible.
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Re: Stephen Hawking says humans must go into space

Unread postby FireJack » Wed 14 Jun 2006, 13:12:48

Space elevators are one thing that could allow us to really explore space. Not only would it be cheap you could take things into space that could not possibly survive a lunch. Then you could build ships in space, ones that would not have to be designed to launch from the ground. Heavy equipment and size would not be such a problem.

Wether or not nanotechnolgy ever really gets a start is the problem though, even if it does there is no garentee it will save us from resource depletion etc.
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Re: Stephen Hawking says humans must go into space

Unread postby EnergyUnlimited » Wed 14 Jun 2006, 13:22:15

$this->bbcode_second_pass_quote('grabby', 'M')utations are almost always bad in the last 2000 years all observable mutations have damaged and limited the organism.
It is a false premise that says mutations are good, it is non scientific an undemonstrable.

If you have 2 million line code in windows and you randomly go in and change ONE BYTE ANYWHERE

it will far more likely to be bad good.

you will not get a new subroutine that calculates pi.

you will get a subroutine that crashes.
so with humans

the mutation to improve humans is false.

2. Radiation in deep space is deadly. cosmic rays are plentiful
yo would not survive to the stars.

Lead in space? that oughta be good for acceleration.

you C CANNOT GO TO THE STARS ON FUSION!
It is a mathematical impossibility.

antimatter is the only option and you wont see it in our era.
ergo after peak there is no more star attempts.


with reactive engines? (shooting matter or light out the back)
with a nice heavy ship youll go no where.

those who think we are going to the stars are wrong.1. we are not going to the stars.
2. Harry putter is not real
3. Star trek is a fantasy designed to sell gillete shaving blades.

wake up your about to run out of il.

going to space will save nothing.

3. Food mutations are never good. When the astronauts came back from the moon they isolated them for 2weeks and sterilized them so no plant mutation would WIPE OUT THE PlANET FOOD CHAIN they undserstood.

now that moonsanta is randomly mutating AND PLANTING plants without knowing what will happen this is GOOD?
mankind has a high likelihood of neutralizing our food supply and killing us.


1. If no mutations are good, evolution is dead. I do not observe it.

2. Life is not a Windows software (thankfully). Most of mutations are close to be neutral to survivability in fact.

3. "the mutation to improve humans is false"

Sounds illogical.

4. "Radiation in deep space is deadly."

Water also is deadly if it get to your lungs.

"Cosmic rays are plentiful"

So what, those are usually charged particles and can be deflected by magnetic field generated by the spacecraft.
Solved.

5. "You C CANNOT GO TO SPACE ON FUSION
it is a mathematical impossibility".

False.
You can. You can even go on chemical fuel (as few probes sent in seventhies actually do!).
It is only important how much TIME you want to spare.
One way travel to nearby stars (4-6 light years away) with 10-20% of speed of light is perfectly possible with fusion. This speed would allow to complete travel within single generation.

6. "Antimatter is the only option..."

False. There are many energetic transformations which are able to allow to produce sufficient energy to achieve this.
Fusion is one of them, atomic size black hole fed with ordinary matter is another one. They are many more.

7. "...we are not going to stars"

Who told you that?

8. "Harry putter is not real"

Neither Harry Potter is.

9. "going to space will save nothing"

There is not much to be saved anyway.
What the point to save? Carry on spending.

10. "Food mutations are never good..."

Who told you that?

11. "When the astronauts came back from the moon they isolated them for 2weeks and sterilized them so no plant mutation would WIPE OUT THE PlANET FOOD CHAIN they undserstood."

Silly PR exercise.
Mutations around Chernobyl do not appear to wipe out our food chain.

12. "now that moonsanta is randomly mutating AND PLANTING plants without knowing what will happen this is GOOD?
mankind has a high likelihood of neutralizing our food supply and killing us."

Not randomly really.
What the odds do you give for this to wipe us out?
My estimation is in range 0.000001% or so.
Food mutate anyway by natural course of events.
Otherwise you would eat carbonian ferns.
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Re: Stephen Hawking says humans must go into space

Unread postby EnergyUnlimited » Wed 14 Jun 2006, 13:27:15

$this->bbcode_second_pass_quote('MonteQuest', '')$this->bbcode_second_pass_quote('EnergyUnlimited', 'M')onteQuest,
Not necessarily so ignorant.


Oh very, the hubris is incredible.


Can you provide some data proving that such technology developement is NOT POSSIBLE?
Then we would have something to discuss.
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Re: Stephen Hawking says humans must go into space

Unread postby Windmills » Wed 14 Jun 2006, 13:29:14

$this->bbcode_second_pass_quote('grabby', 'M')utations are almost always bad in the last 2000 years all observable mutations have damaged and limited the organism.
It is a false premise that says mutations are good, it is non scientific an undemonstrable.


I'm not sure what kind of mutation you're talking about. If it's the comic book type of mutation, then sure, they're bad, except when they give you super powers when you eat radioactive soup. I keep waiting for all the Chernobyl super heroes to arise, but I guess they're all still in their Clark Kent phase of denial. Either that, or radiation doesn't give you any bloody superpowers and it actually makes you sick or dead. I wonder which it is?

However, speaking more scientifically and more specifically, biologically, mutations can be good, bad, or neutral in their effects. Mutations in an organism are most often neutral in effect. Every human carries a dozen or so mutations and they rarely have any detrimental or beneficial effect.

People generally have a very poor understanding of the concept of mutation. They tended to sleep through high school biology and consequently glean a negative connotation by consuming too much mass media. Mutations are one of several sources of genetic variability, which is the feedstock for species adaptation and evolution. In that sense, mutations are very important.

Mutations in an organism compare very poorly to computer code. I don't think it's a useful analogy at all.

As for Stephen Hawking, I think some people are way too in love with him as a physics genius. Beyond his narrow academic expertise, he seems almost detached from reality. He's living in a fantasy world. I should slap him out of his wheelchair. He seems like a believer in the Church of Gizmosalvation and the Techno-Messiah. An amazing display of faith from a supposed scientist. That he would even waste his time talking about space as a solution to any of man's problems is astounding to me. It's hard for me to believe he's aware of any kind of resource depletion with comments like his. He really needs to come back down to Earth and consider the practicalities of real life. We all like to day dream, but a person in his position should keep such garbage to himself and not mislead people into believing such fantasies could come true. It's sad that he isn't using his symbolic standing as our generation's genius to come up with better ideas for improving man's condition in the face of its daunting problems.
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Re: Stephen Hawking says humans must go into space

Unread postby MonteQuest » Wed 14 Jun 2006, 13:38:37

$this->bbcode_second_pass_quote('EnergyUnlimited', '')$this->bbcode_second_pass_quote('MonteQuest', '')$this->bbcode_second_pass_quote('EnergyUnlimited', 'M')onteQuest,
Not necessarily so ignorant.


Oh very, the hubris is incredible.


Can you provide some data proving that such technology developement is NOT POSSIBLE?
Then we would have something to discuss.


Man cannot become God or Mother Nature. Take your pick.
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Re: Stephen Hawking says humans must go into space

Unread postby EnergyUnlimited » Wed 14 Jun 2006, 13:53:40

$this->bbcode_second_pass_quote('MonteQuest', '')$this->bbcode_second_pass_quote('EnergyUnlimited', '')$this->bbcode_second_pass_quote('MonteQuest', '')$this->bbcode_second_pass_quote('EnergyUnlimited', 'M')onteQuest,
Not necessarily so ignorant.


Oh very, the hubris is incredible.


Can you provide some data proving that such technology developement is NOT POSSIBLE?
Then we would have something to discuss.


Man cannot become God or Mother Nature. Take your pick.


That sounds like kind of religion.
As long as I am concerned Mother Nature is a chemistry and God does not exist.
Could you prove otherwise?
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Re: Stephen Hawking says humans must go into space

Unread postby gigacannon » Wed 14 Jun 2006, 14:00:24

You've got to understand, nothing that we can do to the Earth can make it any less habitable than outer space. Hawking wasn't talking about peak oil at all, unless you consider nuclear war to necessarily be a symptom of peak oil. He meant that we are currently dependent on a single planet, that is susceptible, individually, to disaster. The more planets we spread to... the more chance the human genome has of surviving.

There are plenty of resources in outer space. If you can devise a means of fabricating custom components in outer space, fabricate rocket fuel and provide air and water for people, then everything is set for the cheap expansion into space (once you get up there).

Don't forget that the planet Titan (a natural satellite of Saturn) is actually made of natural gas. It's possible that the planet has its own reserves of abiotic oil. It's a shame that it's so far away... only when industry has been set up in space can we even think about shipping oil and gas from Titan.
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Re: Stephen Hawking says humans must go into space

Unread postby MonteQuest » Wed 14 Jun 2006, 14:02:27

$this->bbcode_second_pass_quote('EnergyUnlimited', ' ')That sounds like kind of religion.
As long as I am concerned Mother Nature is a chemistry and God does not exist.
Could you prove otherwise?


No, it is Biology 101.

Mother Nature is chemistry? What hubris!
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Re: Stephen Hawking says humans must go into space

Unread postby EnergyUnlimited » Wed 14 Jun 2006, 14:15:08

$this->bbcode_second_pass_quote('MonteQuest', '')$this->bbcode_second_pass_quote('EnergyUnlimited', ' ')That sounds like kind of religion.
As long as I am concerned Mother Nature is a chemistry and God does not exist.
Could you prove otherwise?


No, it is Biology 101.

Mother Nature is chemistry? What hubris!


Biology is a chemistry really. A bit advanced, but still chemistry.
After all, what living organisms are made of?
Chemical elements I think.

However if you want go down this avenue biology (and chemistry as well) are all physics on the end.

Nothing mysterious in Mother Nature.
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Re: Stephen Hawking says humans must go into space

Unread postby MonteQuest » Wed 14 Jun 2006, 14:59:13

$this->bbcode_second_pass_quote('EnergyUnlimited', ' ')However if you want go down this avenue biology (and chemistry as well) are all physics on the end.

Nothing mysterious in Mother Nature.


Yep, easy as pie to duplicate. Random genetic mutations? Use a computer, no problem.

Genetic diversity? We will make a pill.
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