Mathematically Speaking: Is there life on other Planets?

I'm not great at math, but given the vastness of the universe, I can't imagine why life wouldn't exist somewhere else if it was able to happen here.

I don't believe living things can survive the length of travel to ever encounter other living things billions of miles away. I find that so implausible that I'm not even curious about it.
 
CasualLurker said:
I'm not great at math, but given the vastness of the universe, I can't imagine why life wouldn't exist somewhere else if it was able to happen here.

I don't believe living things can survive the length of travel to ever encounter other living things billions of miles away. I find that so implausible that I'm not even curious about it.
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you willfully dumb and ignorant.

and I don;t know if thats a symptom or a cause.
 
Cypress said:
First, even though we've been studying it for at least 70 years we have really do not know how coded information-bearing molecules like DNA and complex cellular biology emerge and get organized from inert non-biological chemicals.
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Correct, we don't know, but we can certainly speculate, and there are some good models out there.

Cypress said:
We can probably immediately write off 90 percent of stars as candidates for life.
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How did you arrive at this probability? Answer: you pulled it out of your ass. Actual Answer: you copy-pasted what someone else pulled out of his ass.

Cypress said:
The vast majority of stars in the universe are red dwarfs don't put out enough solar radiation for anything like photosynthesis, and red dwarves are infamous for violent gamma ray bursts which likely cook any life in the vicinity.
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Your making a case for the improbability of terrestrial life being generated outside of Terra. I think we can all agree that the probability of terrestrial life forming outside of earth is roughly zero.

You are not, however, making any sort of convincing argument for the improbability of any life at all.

Cypress said:
You can probably write off all the old galaxies and dwarf galaxies which are too poor in metals to support life.
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Yet another Cypress omniscience fallacy.
1. You do not know the metal content of any galaxy
2. You do not know what is required for life to exist
3. You don't know what life is in any galaxy
4. You still don't know what science is

Cypress said:
You can write off all the O and B class giant stars, which don't exist long enough for biological evolution to kick into gear.
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I nominate this for "Stupid Assertion of the Week"

Cypress said:
You can probably write off all rocky planets which don't have a magenetic field.
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Why? Why are magnetic fields necessary for life to exist?

Cypress said:
You can write off all rocky planets that don't have a narrow temperature range conducive to liquid water.
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Why? Is life restricted to being terrestrial life?

Cypress said:
You can probably write off all planets that don't have plate tectonics to recycle nutrients and concentrate mineral ores which would be needed for metallurgy.
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Assuming this is true (which I don't):
1. Why is metallurgy required for intelligent life to develop? How many dolphin metallurgists do you know?
2. How many planets does this entail, by the way?

Cypress said:
You can write off all rocky planets that don't have stable atmospheres with at least around 20 percent free oxygen,
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Why? Are we back to claiming that all life must be terrestrial life?

Cypress said:
because then you can't have self sustaining fire and metallurgy, which would be necessary for a technological civilization.
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You've got to be kidding me.
 
CasualLurker said:
I don't believe living things can survive the length of travel to ever encounter other living things billions of miles away. I find that so implausible that I'm not even curious about it.
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A specific organism may not be able to at nonrelativistic speeds but an ecosystem can endure for billions of years (we know because we're in one that has endured for billions of years).

Big ship moving slow, or any ship moving very fast so that the in-frame time is short.

There are two ways it can happen.

Also, even if that was true, it doesn't mean we couldn't learn information about distant ancient life and if the past held no appeal then dinosaurs wouldn't be so popular.
 
Melchizedek=Tecumseh said:
Not physically! But there's a whole Spirit world that predates the Physical universe
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I believe you have consumed all the spirits the world has to offer - explaining your insane cult...

A reminder, we have already found life on Mars.

SIngle cell, primitive, and dead a million years, but life nonetheless.

www.nasa.gov

NASA Says Mars Rover Discovered Potential Biosignature Last Year - NASA

A sample collected by NASA’s Perseverance Mars rover from an ancient dry riverbed in Jezero Crater could preserve evidence of ancient microbial life. Taken
www.nasa.gov www.nasa.gov
 
Uncensored2008 said:
A reminder, we have already found life on Mars!
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Nope.

Your own article says the evidence is inconclusive pending further investigation.

"A potential biosignature is a substance or structure that might have a biological origin but requires more data or further study before a conclusion can be reached about the absence or presence of life. "​
 
Uncensored2008 said:
I believe you have consumed all the spirits the world has to offer - explaining your insane cult...

A reminder, we have already found life on Mars.

SIngle cell, primitive, and dead a million years, but life nonetheless.

www.nasa.gov

NASA Says Mars Rover Discovered Potential Biosignature Last Year - NASA

A sample collected by NASA’s Perseverance Mars rover from an ancient dry riverbed in Jezero Crater could preserve evidence of ancient microbial life. Taken
www.nasa.gov www.nasa.gov
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So you claim you don't have a Spirit, just a piece of flesh!
 
Uncensored2008 said:
I believe you have consumed all the spirits the world has to offer - explaining your insane cult...

A reminder, we have already found life on Mars.

SIngle cell, primitive, and dead a million years, but life nonetheless.

www.nasa.gov

NASA Says Mars Rover Discovered Potential Biosignature Last Year - NASA

A sample collected by NASA’s Perseverance Mars rover from an ancient dry riverbed in Jezero Crater could preserve evidence of ancient microbial life. Taken
www.nasa.gov www.nasa.gov
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That's an over hyped claim. They found a hydrate stain that they haven't yet suggested a sterile explanation for. They have not identified a cell.
 
Cypress said:
Nope.

Your own article says the evidence is inconclusive pending further investigation.

"A potential biosignature is a substance or structure that might have a biological origin but requires more data or further study before a conclusion can be reached about the absence or presence of life. "​
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It's pretty conclusive. At one time there was single cell life on Mars.

It really means nothing.
 
Uncensored2008 said:
I believe you have consumed all the spirits the world has to offer - explaining your insane cult...

A reminder, we have already found life on Mars.

SIngle cell, primitive, and dead a million years, but life nonetheless.

www.nasa.gov

NASA Says Mars Rover Discovered Potential Biosignature Last Year - NASA

A sample collected by NASA’s Perseverance Mars rover from an ancient dry riverbed in Jezero Crater could preserve evidence of ancient microbial life. Taken
www.nasa.gov www.nasa.gov
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its desh's sister.
 
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