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Bad Universe

tvellalott
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1/11/2011 12:35:23 AM
Posted: 5 years ago
Anyone seen this show? I watched the first episode last night and loved it and I'll watch the second episode tonight.

It's hosted by Phil Plait and each episode focuses on some element of science fiction where the Earth is destroyed by something from space.

The first episode was about Comets and Meteors.
Apparently some scientists predict 99942 Apophis (http://en.wikipedia.org...) will pass so close to the Earth that it will enter our atmosphere. It's roughly the size of a football field.

The next episode is about Alien Attack, which should be good.

It's a science show done in the style of Mythbusters and Phil Plait is very enthusiatic about Astronomy. I highly recommend it.
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tvellalott
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1/11/2011 6:32:16 AM
Posted: 5 years ago
Just watched the second episode. Was AWESOME.

The most likely theory was that self-replicating robots would be sent out to investigate or destroy other planets. Look at how we ourselves explore other planets; with out machines!

We already have machines that can replicate their own plastic parts. Once we have machines that can replicate their own metal and eletronic parts, I don't see how this couldn't be completely possible. Send them out. When they land on a planet, even one without life, they could use the minerals on the planet to build parts. I know it's FAR off, but it seems completely plausible to me.
"Caitlyn Jenner is an incredibly brave and stunningly beautiful woman."

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tvellalott
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1/12/2011 5:02:09 AM
Posted: 5 years ago
At 1/12/2011 12:52:05 AM, Puck wrote:
It's also an episode of Stargate. :P

I didn't know that but that doesn't make it any less plausible, lol.
"Caitlyn Jenner is an incredibly brave and stunningly beautiful woman."

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belle
Posts: 4,113
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1/13/2011 9:44:57 PM
Posted: 5 years ago
At 1/11/2011 6:32:16 AM, tvellalott wrote:
Just watched the second episode. Was AWESOME.

The most likely theory was that self-replicating robots would be sent out to investigate or destroy other planets. Look at how we ourselves explore other planets; with out machines!

We already have machines that can replicate their own plastic parts. Once we have machines that can replicate their own metal and eletronic parts, I don't see how this couldn't be completely possible. Send them out. When they land on a planet, even one without life, they could use the minerals on the planet to build parts. I know it's FAR off, but it seems completely plausible to me.

its also a paradox. why haven't we encountered any self-replicating robots? does that mean we are the only life in the universe?

http://en.wikipedia.org...

i also remember reading it in some science fiction story that i really liked but i can't remember the author or title. lol. i'm sure its been done many times.
evidently i only come to ddo to avoid doing homework...
mattrodstrom
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1/13/2011 9:48:06 PM
Posted: 5 years ago
At 1/13/2011 9:44:57 PM, belle wrote:
At 1/11/2011 6:32:16 AM, tvellalott wrote:
Just watched the second episode. Was AWESOME.

The most likely theory was that self-replicating robots would be sent out to investigate or destroy other planets. Look at how we ourselves explore other planets; with out machines!

We already have machines that can replicate their own plastic parts. Once we have machines that can replicate their own metal and eletronic parts, I don't see how this couldn't be completely possible. Send them out. When they land on a planet, even one without life, they could use the minerals on the planet to build parts. I know it's FAR off, but it seems completely plausible to me.

its also a paradox. why haven't we encountered any self-replicating robots? does that mean we are the only life in the universe?

http://en.wikipedia.org...

i also remember reading it in some science fiction story that i really liked but i can't remember the author or title. lol. i'm sure its been done many times.

i think they prolly overestimate the chances for life in the first place.

I'm no biologist... but I don't see Earthlike atmospheres as even close to necessarilly resulting in life... Much Less intelligent life.
"He who does not know how to put his will into things at least puts a meaning into them: that is, he believes there is a will in them already."

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mattrodstrom
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1/13/2011 9:49:56 PM
Posted: 5 years ago
I know when I saw the Drake equation I thought it was ridiculous.
"He who does not know how to put his will into things at least puts a meaning into them: that is, he believes there is a will in them already."

Metaphysics:
"The science.. which deals with the fundamental errors of mankind - but as if they were the fundamental truths."
belle
Posts: 4,113
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1/13/2011 9:55:44 PM
Posted: 5 years ago
At 1/13/2011 9:48:06 PM, mattrodstrom wrote:
At 1/13/2011 9:44:57 PM, belle wrote:
At 1/11/2011 6:32:16 AM, tvellalott wrote:
Just watched the second episode. Was AWESOME.

The most likely theory was that self-replicating robots would be sent out to investigate or destroy other planets. Look at how we ourselves explore other planets; with out machines!

We already have machines that can replicate their own plastic parts. Once we have machines that can replicate their own metal and eletronic parts, I don't see how this couldn't be completely possible. Send them out. When they land on a planet, even one without life, they could use the minerals on the planet to build parts. I know it's FAR off, but it seems completely plausible to me.

its also a paradox. why haven't we encountered any self-replicating robots? does that mean we are the only life in the universe?

http://en.wikipedia.org...

i also remember reading it in some science fiction story that i really liked but i can't remember the author or title. lol. i'm sure its been done many times.

i think they prolly overestimate the chances for life in the first place.

I'm no biologist... but I don't see Earthlike atmospheres as even close to necessarilly resulting in life... Much Less intelligent life.

well first, its more than just the atmosphere, but second life arose on earth very shortly after the conditions were ripe for it (something like within 100,000 years).

i think intelligent life is the rarity.
evidently i only come to ddo to avoid doing homework...
tvellalott
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1/13/2011 10:03:08 PM
Posted: 5 years ago
At 1/13/2011 9:44:57 PM, belle wrote:
its also a paradox. why haven't we encountered any self-replicating robots? does that mean we are the only life in the universe?

http://en.wikipedia.org...

Given the size of the universe, it seems exceedingly likely that there IS another intelligent lifeform out there.
Why haven't we encountered any self-replicating robots, or anything remotely suggesting that intelligent life exists?
It's simply too far away.
I'm certain we will find life though, it's just a matter of when.

At 1/13/2011 9:55:44 PM, belle wrote:
i think intelligent life is the rarity.
Rarity indeed.
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mattrodstrom
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1/13/2011 10:06:33 PM
Posted: 5 years ago
life arose on earth very shortly after the conditions were ripe for it (something like within 100,000 years).

i think intelligent life is the rarity.

a sample size of 1 doesn't quite convince me...

if we found that it came into existence.. went away.. and came back separately/different..

or had Very different types of life-forms... then maybe... there'd be a better argument...

as it stands it seems that All life on earth probably had the same starting point.

[ though... I did here (more recently) there was some kind of life in some strange lake which survived on Arsenic or something so... maybe that would be evidence of Separate instances of it coming about ]
"He who does not know how to put his will into things at least puts a meaning into them: that is, he believes there is a will in them already."

Metaphysics:
"The science.. which deals with the fundamental errors of mankind - but as if they were the fundamental truths."
belle
Posts: 4,113
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1/13/2011 10:24:52 PM
Posted: 5 years ago
At 1/13/2011 10:06:33 PM, mattrodstrom wrote:
life arose on earth very shortly after the conditions were ripe for it (something like within 100,000 years).

i think intelligent life is the rarity.

a sample size of 1 doesn't quite convince me...

if we found that it came into existence.. went away.. and came back separately/different..

or had Very different types of life-forms... then maybe... there'd be a better argument...

if there was any other kind of life it was subsumed by what we have now and the evidence erased

as it stands it seems that All life on earth probably had the same starting point.

yes


[ though... I did here (more recently) there was some kind of life in some strange lake which survived on Arsenic or something so... maybe that would be evidence of Separate instances of it coming about ]


the deal was that it could tolerate arsenic not that it lived off it or needed it.
evidently i only come to ddo to avoid doing homework...
mattrodstrom
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1/13/2011 10:43:04 PM
Posted: 5 years ago
At 1/13/2011 10:24:52 PM, belle wrote:
as it stands it seems that All life on earth probably had the same starting point.

yes

so.. the fact that it came about 100,000 years into the time that it was possible doesn't necessarily mean anything.

it might on average take a trillion years of such conditions...

it's like picking a marble out of a bag.. if you pick blue.. that doesn't mean the rest are...

now... if you picked 10 blue ones in a row.. I'd bet on the next one being blue...

but saying that blue's the likely color from one pick (or that it'll take around 100,000 years for life to come about based on our 1 case)... and pretending that using such an assumption is Scientific is silly business.
"He who does not know how to put his will into things at least puts a meaning into them: that is, he believes there is a will in them already."

Metaphysics:
"The science.. which deals with the fundamental errors of mankind - but as if they were the fundamental truths."