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Why We Haven’t Met Any Aliens

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Re: Why We Haven’t Met Any Aliens

#61
post #10

Earlier quoted context omitted.

On the other hand, the past decade has taught us again and again how powerful crowdsourcing can be.

It may be useful for finding ideas to earn money, but I have seen no indications that crowd sourcing is at all useful for solving complex questions, designing complex machinery, or discovering any form of truth.

Missed the whole protein folding thing, did you?

Re: Why We Haven’t Met Any Aliens

#62

My theory is that we haven't met aliens yet because the aliens have been to earth sereptitiously, have taken some DNA samples, and have decided there's nothing to be gained from making contact with us. They've told everyone else in the universe that the planet is hostile and not particularly technologically developed. They have also noted that it is not a threat just as long as they don't get advanced space travel te…

you must read HHGG if you haven't already

Re: Why We Haven’t Met Any Aliens

#63
I thought the argument was brilliant and scary. A lot of you are getting distracted by the headline. This article isn't really about aliens or the search for ET life. It's about social decay - entertaining ourselves to death AND virtual hedonistic narcissism resulting in extinction.

HOWEVER, the author, in his own narcissist fog, forgets to mention that this is a fate that will befall only the wealthiest, the whitest (admit it) and the wittiest (educated). This is not the future of the species, although leaving the planet will not get any easier in time.

So really, why haven't we heard from the aliens? The answers are simple but boring so we search for more interesting ones, interminably.

a) They are too far away

b) Life is extremely rare

Re: Why We Haven’t Met Any Aliens

#64
post #33

If alien species limited themselves to entertainment for such a long time, then where are the broadcasts from other solar systems? On the other hand, recent studies apparently hint that things like electrical and gravitational constants may not be the same everywhere, so maybe they don't transmit their signals with light. One more thing is that the argument that the age of the universe combined with its propensity to…

One reason I've read about is that when you consider humanity we were only broadcasting radio communication for a sliver of our history before we started using buried cables as a way to facilitate communication. The theory is that other civilizations would figure out the same thing and there is a limited window of time to intercept their radio communication.

Makes sense, actually. Thanks :)

Re: Why We Haven’t Met Any Aliens

#65
post #32

Earlier quoted context omitted.

Sort of like panspermia? http://en.wikipedia.org/wiki/Panspermia

Woah thats really similar. That's the problem with the internet: it makes you feel like nothing you think of is original. Thanks for the link btw.

Unless you're really special nothing you think of is original. I'm not saying you're not special though. :)

Re: Why We Haven’t Met Any Aliens

#66
post #65

Earlier quoted context omitted.

Woah thats really similar. That's the problem with the internet: it makes you feel like nothing you think of is original. Thanks for the link btw.

Unless you're really special nothing you think of is original. I'm not saying you're not special though. :)

Hahaha thanks. I read somewhere that at the same time you think of a grand new idea, 10 people somewhere in the world will also have the same idea. I doubt that's always true, but it's pretty amazing nonetheless.

Re: Why We Haven’t Met Any Aliens

#67

A terrible article. So let's say something more interesting. There are several important ideas intertwined together around the Fermi Paradox: 1) Fermi Paradox Why haven't we seen any evidence in the observable universe of megascale activities and exponential growth comparable to those that we know that our descendants will be capable of, and fairly soon? http://en.wikipedia.org/wiki/Fermi_paradox 2) The Outer Bounds…

Regarding #2, there is also the possibility that if a civilization converted its light cone into computronium, we would not notice. Maybe because they used exotic matter as a substrate and that matter did not strongly interact with the rest of the universe. Or maybe they figured out how to "escape" this universe by creating a computer that can perform and infinite amount of computation without affecting its surroundings. This idea is explored in Greg Egan's Permutation City where the main plot involves creating a new pocket universe for simulated beings with access to an infinite amount of computation but can be bootstrapped on a normal computer.

Re: Why We Haven’t Met Any Aliens

#68

A terrible article. So let's say something more interesting. There are several important ideas intertwined together around the Fermi Paradox: 1) Fermi Paradox Why haven't we seen any evidence in the observable universe of megascale activities and exponential growth comparable to those that we know that our descendants will be capable of, and fairly soon? http://en.wikipedia.org/wiki/Fermi_paradox 2) The Outer Bounds…

Possible answer: First nearly every civilization that mastered, say, radio, did it millions of years ago. Second, nearly every such civilization long ago found much better means of communications than we know about. Third, they realize that trying to communicate via radio is silly and use much better means we don't know about. Net, they are out there and communicating, but we don't hear them and they don't hear us or…

But if they're so advanced, they probably still have radio receivers somewhere though. They should be able to receive our signals and reply with some sort of super advanced method that appears as radio waves so that we can receive them, but that travel much faster so it doesn't take a thousand years to reach us.

Re: Why We Haven’t Met Any Aliens

#69
post #45

Has anyone thought about this...astronauts release their waste into space. There's bacteria that gets frozen almost as soon as it leaves the ship/space station right? Couldn't it stay preserved until it lands on a distant planet that hasn't formed an atmosphere and be the seeds for life on infant planets? I'm no physicist (or scientist, period), but it's just a question that's been bugging me for a while.

Interesting thought! Something along similar lines: http://www.southparkstudios.com/clips/257096/crap-is-everyth...

Haha reminds me of "every sperm is sacred"

Re: Why We Haven’t Met Any Aliens

#70
post #61
post #10

Earlier quoted context omitted.

It may be useful for finding ideas to earn money, but I have seen no indications that crowd sourcing is at all useful for solving complex questions, designing complex machinery, or discovering any form of truth.

Missed the whole protein folding thing, did you?

That's the exception that proves the rule.

Also, the crowd sourcing aspect of the whole protein folding thing merely involved doing the grunt work, of which there was so much the scientists that set up the parameters for it couldn't possibly do it all themselves. The true achievement was thinking up the parameters for the thousands of monkeys to twiddle, not the twiddling itself.

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