Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

Are We Alone in the Universe?
NYT ^ | 11-20-13 | Paul Davies

Posted on 11/20/2013 9:33:30 AM PST by Dysart

click here to read article


Navigation: use the links below to view more comments.
first previous 1-20 ... 81-100101-120121-140141-149 next last
To: SampleMan

“If only three ants lived on planet earth, one in the Americas, one in Japan, and one in Africa, they would each be effectively alone.”

Please read post 56 on the fermi paradox. In your example, if each ant lives for 50 million years, it would have plenty of time to walk every inch of the globe and make contact with the other two ants.


101 posted on 11/20/2013 10:34:09 PM PST by staytrue
[ Post Reply | Private Reply | To 69 | View Replies]

To: oldenuff2no

How about I give you 40 billion to one odds that neither Jacksonville or the Redskins will win the Super bowl.


102 posted on 11/20/2013 10:36:13 PM PST by staytrue
[ Post Reply | Private Reply | To 70 | View Replies]

To: Dysart
I've given the matter some serious consideration and come to the conclusion that we can infer the nature of intelligent life by what it is that they're after when they visit the Earth.

I think the Planet Of Cow Anuses has found us.

103 posted on 11/20/2013 10:49:13 PM PST by Billthedrill
[ Post Reply | Private Reply | To 1 | View Replies]

To: Kevmo

Life is easier to do than you know.

In a methane atmosphere, you can add a little lightning and hydrocarbons will rain out of the sky.

These hydrocarbons will float on the surface of water.

Add some splashing due to wave action and you get spheriods with water on the inside of a hydrocarbon shell.

Do this in a tide pool and you get a little chemistry experiment going.

So how many tide pools are there ? I don’t know but maybe trillions.


104 posted on 11/20/2013 10:52:08 PM PST by staytrue
[ Post Reply | Private Reply | To 94 | View Replies]

To: staytrue
I'm tempted to just reply that ants don't live 56 million years and let it go at that. Simple and to the point. However, I'll expand on that.

How many willing sailors would Columbus have had if they all knew for certain that they were going to die on the first day of the journey?

Presuming that our science fiction writers are wrong, and there is no magical propulsion system in our future, the tyranny of time is going to prevent colonization by sentient beings, who do not desire to die for the collective.

A high estimate of Earth-like planet systems is 20%, however, Mars and Venus are both Earth-like planets, so that 20% doesn't mean a lot. 25 stars are within 12 light years of Earth, so best case would be that 1 of them has a habitable planet.

System to system movement would likely only occur as the result of a Diaspora, fleeing a failing star. The colonizers would then stop as soon as they reached a final destination. Should propulsion to 50%+ of C or suspended animation be possible, then all of a sudden colonization would be feasible, but the question would remain, "to what end?". The most likely answer would more resemble the Pilgrims than Magellan. Even if we find and confirm a definitive alien Earth, say 16 light years away, what would we do? Send a probe, that might return information in ~75,000 years? The final answer might just be that things are too far apart for biological beings to colonize, not because they can't, but because they won't.

105 posted on 11/21/2013 6:01:07 AM PST by SampleMan (Feral Humans are the refuse of socialism.)
[ Post Reply | Private Reply | To 101 | View Replies]

To: oldenuff2no
Mathematically speaking, extra-terrestrial life is a certainty.

Mathematical odds and reality aren't the same thing. If it were, a monkey would have typed out at least a single paragraph of William Shakespeare by now.

Also, there is no mathematical proof that life began spontaneously on this planet, so extrapolating that equation is meaningless.

106 posted on 11/21/2013 6:05:12 AM PST by SampleMan (Feral Humans are the refuse of socialism.)
[ Post Reply | Private Reply | To 70 | View Replies]

To: SampleMan

I asked the question early on,

if there “has to be” life in another location,
where did that life come from.

Of course, they avoid “spontaneous generation” like the plague, so won’t answer.


107 posted on 11/21/2013 6:06:42 AM PST by MrB (The difference between a Humanist and a Satanist - the latter admits whom he's working for)
[ Post Reply | Private Reply | To 106 | View Replies]

To: SampleMan
Explain 'quantum entanglement' and 'action at a distance' for us. Since you cannot, we may accept that you don't yet know enough to exclude FTL communication and possibly FTL travel. Thanks for playing though ...
108 posted on 11/21/2013 7:29:56 AM PST by MHGinTN (Being deceived can be cured.)
[ Post Reply | Private Reply | To 105 | View Replies]

To: sun7
No one has ever been able to explain all the UFO sighting


109 posted on 11/21/2013 9:09:28 AM PST by kobald
[ Post Reply | Private Reply | To 99 | View Replies]

To: MHGinTN
Explain 'quantum entanglement' and 'action at a distance' for us. Since you cannot, we may accept that you don't yet know enough to exclude FTL communication and possibly FTL travel. Thanks for playing though ...

Seriously? Why don't you stomp your foot too, before you take your ball and go home.

Assuming that they aren't just mistaken observations and can actually be put to any real application, action at a distance and quantum entanglement are at best going to allow you to communicate over long distances, but you are still going to have to get your entangled atoms there. Back to square one.

It sounds like you just came out of your mom's basement and discovered that Star Trek wasn't a documentary.

I never stated that faster travel would never be possible. I stated that if its not possible, then we are effectively alone in the universe. I like to call that math.

110 posted on 11/21/2013 9:50:24 AM PST by SampleMan (Feral Humans are the refuse of socialism.)
[ Post Reply | Private Reply | To 108 | View Replies]

To: SampleMan

LOL ... nice try.


111 posted on 11/21/2013 10:21:44 AM PST by MHGinTN (Being deceived can be cured.)
[ Post Reply | Private Reply | To 110 | View Replies]

To: GunRunner
Without faster than light travel, there’s really no point in getting too uptight about it, since even if there is life we’ll never know about it.

I mostly agree, but we may find evidence of far away (and thereby long ago) civilizations in their transmissions or even by analyzing the atmospheres of their planets. And I don't really know the ultimate limit on our telescope abilities, but we might see some cool stuff within our galaxy.

112 posted on 11/21/2013 10:25:35 AM PST by dead (I've got my eye out for Mullah Omar.)
[ Post Reply | Private Reply | To 6 | View Replies]

To: staytrue

And if you do the mathematical probability calculations of all that stuff happening (as Coppedge & others did), over the 15B year life of the universe, with ALL of the atoms of the earth available for reaction at any moment, it will happen in 10^139 years, which is HUNDREDS of orders of magnitude beyond impossible. Life is harder than you know.


113 posted on 11/21/2013 10:34:35 AM PST by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 104 | View Replies]

To: kobald; sun7

Interesting graph.

UFO technology is just post WWII boundary layer control aircraft, a secret weapon.

http://www.amazon.com/Intercept-UFO-Renato-Vesco/dp/B0006WI572/ref=sr_1_1?ie=UTF8&qid=1385059282&sr=8-1&keywords=intercept+ufo+renato+vesco


114 posted on 11/21/2013 10:41:45 AM PST by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 109 | View Replies]

To: MHGinTN
So you are unequivocally stating that faster travel is possible.

Anything other meaningless assertions that you'd like to further tie your disintegrating credibility to?

115 posted on 11/21/2013 10:43:47 AM PST by SampleMan (Feral Humans are the refuse of socialism.)
[ Post Reply | Private Reply | To 111 | View Replies]

To: SampleMan

Again, nice try. Keep trying to put words on my keyboard, showing your desperate state. If I keep responding will you become totally irrational, or do you have a stopping point?


116 posted on 11/21/2013 10:51:35 AM PST by MHGinTN (Being deceived can be cured.)
[ Post Reply | Private Reply | To 115 | View Replies]

To: MHGinTN
Explain 'quantum entanglement' and 'action at a distance' for us. Since you cannot, we may accept that you don't yet know enough to exclude FTL communication and possibly FTL travel. Thanks for playing though ...

In exactly which post did I exclude any possibilities?

Clearly you do not understand English, but I'm not rushing to presume that there must be grammatically powered warp engines awaiting in mankind's future.

I have stated that if there is no way to move large masses at large fractions of C, then we aren't likely to colonize the galaxy. You have insinuated that if we cannot prove that such technology will never exist, then we must presume it likely will. My statement is logic, your statement is nonsensical wishful thinking.

So again, if new methods of increasing our speed by several magnitudes does not exist, then we are effectively alone in the universe. Applied mathematics.

117 posted on 11/21/2013 10:54:39 AM PST by SampleMan (Feral Humans are the refuse of socialism.)
[ Post Reply | Private Reply | To 108 | View Replies]

To: MHGinTN

I have math, facts, and logic supporting a definitive statement.

You have wishful thinking...along with what is apparently a problem with admitting when you are wrong.


118 posted on 11/21/2013 10:58:09 AM PST by SampleMan (Feral Humans are the refuse of socialism.)
[ Post Reply | Private Reply | To 116 | View Replies]

To: SampleMan

“How many willing sailors would Columbus have had if they all knew for certain that they were going to die on the first day of the journey?”

Actually, I believe about 50,000 people have signed up to be the first people to colonize mars and this is a one way trip for everyone involved.

This makes Mars cheaper by about 90% because you don’t need fuel and supplies to get back and you don’t need the fuel to carry the fuel and supplies to get back.


119 posted on 11/21/2013 11:30:27 AM PST by staytrue
[ Post Reply | Private Reply | To 105 | View Replies]

To: SampleMan

relativity does not really kick in until about 90% of C.

so you can still go really fast.

the galaxy is only a few hundred thousand light years wide.

so we could colonize the galaxy in a few hundred million years easily without exotic tech

the fact that no one else has done this is the premise behind the fermi paradox.


120 posted on 11/21/2013 11:33:39 AM PST by staytrue
[ Post Reply | Private Reply | To 117 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-20 ... 81-100101-120121-140141-149 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson