Are aliens really going to have to land on this planet

[Carl in Michigan]

There's a smarter species out there

Yeah, but He's not flesh and blood, and He created you and the planet you're sitting on.

 

[Votto]

Damn it, I know you are up there, you can't hide from me forever.

Pay your fair share of universal health care!

Imagine if we put all the money we piss away on nukes and war into getting to Mars and mining the meteor belt. Us china North Korea Israel Russia Europe. All the money we all spend. We'd be so much better off if we taught science instead of religion. Religion is how the elite control the masses. Who are we at war with now? Christians vs Muslims.

There's a smarter species out there

That is one way of looking at things.

Anther way of looking at things is, what threatens humanity? Is it religion, or is it the science that gave life to the use of fossil fuels and global warming?

Is it the Bible, or is it WMD's?

Is Jesus the cause for our concern, or is it genetically altered foods that cannot reproduce?

Is the cause of our concern those religion that teaches us to love our neighbor as ourselves, or is it science that produces Ai, a man-made created artificial intelligence that does not have a conscience? How will this Ai treat humans who are "destroying" the planet?

 

[Divine Wind]

For the rest of the class, that question is where I usually lose them. They have an origin problem too.

Next question is to ask them to quote Genesis 1:26

Incorrect since what is outside the Universe is unknown. "Eternal" has an important meaning here.

As for Genesis, only if you take the Bible literally.

 

[sealybobo]

If we listened to religion we wouldn't know the big bang theory o

It's physically IMPOSSIBLE to travel to another star. For us and for "them" to visit us.

You claim to worship science, but you live a fantasy

Right now at top speed it would take 80 thousand years. And we have an idea how the ship would work. We can produce food and water.

The honest truth is, who cares about another planet that can harbor life? We already live on one. What we need to do is master the universe. Science might one day do that. Religion wont

 

[Divine Wind]

"Abiogenesis" the word every dumb liberal runs to when they can't show or explain how life was created.

The link you provided lists several theories that never panned out what is the stunning conclusion according to your own link:

"There is no single, generally accepted model for the origin of life. Scientists have proposed several plausible theories, which share some common elements."

Yup, that's the best they got folks. There is not one generally accepted model for the origin of life because all the models are complete hokum.

Never once has spontaneous creation been replicated in a lab, and scientists don't even have a theory on how to even attempt it.

We evolutionary biologists are waay too lazy to stare at a test tube or petri dish for a billion years

So it takes a billion years for a bunch of inorganic molecules to suddenly form complex DNA strands. Great cop out, I'll give you that.

Not exactly. It takes that long for simple organics to accumulate in order to come in contact and interact.

The first life was very simple. Complex DNA & multicellular life came much much later.

An interesting, but unproved, theory.

Atheists loved the Oscillating Universe theory, but now that all the evidence points to a One-Shot Universe ending in "The Big Chill", it begs the question "How and Why did it all begin?"

You apparently do not understand science. Science does not prove anything. Science is a negative endeavor. We disprove previous guesses and make a new guess to fit the data.

The guess we call an hypothesis. We then submit our hypothesis to peer review and they do their best to rip it to shreds.

Once a hypothesis has survived a scientific food fight, it becomes a theory.

Theories are difficult to destroy, but it does happen.

Nice spin. Now go try that in an elementary school science class.

 

[Carl in Michigan]

As for Genesis, only if you take the Bible literally.

He meant what He said.

 

[Carl in Michigan]

Right now at top speed it would take 80 thousand years. And we have an idea how the ship would work. We can produce food and water.

The honest truth is, who cares about another planet that can harbor life? We already live on one. What we need to do is master the universe. Science might one day do that. Religion wont

My responses were in response to Matthew's belief that we could ever be visited by any other life.

It CAN'T and WON'T, even if they could exist.

Even if lightspeed were possible, being physical creatures,traveling to the nearest star would take MUCH longer than 4 years. We will NEVER leave our solar system, and they will never come here.

 

[Divine Wind]

Based on recent exoplanet discoveries, Frank and Sullivan assume that one-fifth of all stars have habitable planets in orbit around them. This leads them to conclude that there should be other advanced technological civilization out there, unless the chance for developing such a civilization on a habitable planet in the observable universe is less than 1 in 1024 (a 1 with 24 zeros!). For our own Milky Way galaxy, the odds of being the only technologically advanced civilization are 1 in 60 billion. Thus, it’s very likely that other intelligent, technologically advanced species evolved before us. Even if only one in every million stars hosts a technologically advanced species today, that would still yield a total of about 300,000 such civilizations in the whole galaxy.

The Odds That We’re the Only Advanced Species in the Galaxy Are One in 60 Billion | Daily Planet | Air & Space Magazine

Good point, but we're still stuck with the Fermi Paradox:
Fermi Paradox | SETI Institute
The remark came while Fermi was discussing with his mealtime mates the possibility that many sophisticated societies populate the Galaxy. They thought it reasonable to assume that we have a lot of cosmic company. But somewhere between one sentence and the next, Fermi's supple brain realized that if this was true, it implied something profound. If there are really a lot of alien societies, then some of them might have spread out.

Fermi realized that any civilization with a modest amount of rocket technology and an immodest amount of imperial incentive could rapidly colonize the entire Galaxy. Within ten million years, every star system could be brought under the wing of empire. Ten million years may sound long, but in fact it's quite short compared with the age of the Galaxy, which is roughly ten thousand million years. Colonization of the Milky Way should be a quick exercise.

So what Fermi immediately realized was that the aliens have had more than enough time to pepper the Galaxy with their presence. But looking around, he didn't see any clear indication that they're out and about. This prompted Fermi to ask what was (to him) an obvious question: "where is everybody?"

This sounds a bit silly at first. The fact that aliens don't seem to be walking our planet apparently implies that there are no extraterrestrials anywhere among the vast tracts of the Galaxy. Many researchers consider this to be a radical conclusion to draw from such a simple observation. Surely there is a straightforward explanation for what has become known as the Fermi Paradox. There must be some way to account for our apparent loneliness in a galaxy that we assume is filled with other clever beings.

A lot of folks have given this thought. The first thing they note is that the Fermi Paradox is a remarkably strong argument. You can quibble about the speed of alien spacecraft, and whether they can move at 1 percent of the speed of light or 10 percent of the speed of light. It doesn't matter. You can argue about how long it would take for a new star colony to spawn colonies of its own. It still doesn't matter. Any halfway reasonable assumption about how fast colonization could take place still ends up with time scales that are profoundly shorter than the age of the Galaxy. It's like having a heated discussion about whether Spanish ships of the 16th century could heave along at two knots or twenty. Either way they could speedily colonize the Americas.

Consequently, scientists in and out of the SETI community have conjured up other arguments to deal with the conflict between the idea that aliens should be everywhere and our failure (so far) to find them. In the 1980s, dozens of papers were published to address the Fermi Paradox. They considered technical and sociological arguments for why the aliens weren't hanging out nearby. Some even insisted that there was no paradox at all: the reason we don't see evidence of extraterrestrials is because there aren't any.

 

[Divine Wind]

As for Genesis, only if you take the Bible literally.

He meant what He said.

Who? The Bible was canonized by a group of guys in 325AD, it wasn't handed down by God as the Ten Commandments were to Moses. Do you only accept the King James interpretation?

 

[sealybobo]

Damn it, I know you are up there, you can't hide from me forever.

Pay your fair share of universal health care!

Imagine if we put all the money we piss away on nukes and war into getting to Mars and mining the meteor belt. Us china North Korea Israel Russia Europe. All the money we all spend. We'd be so much better off if we taught science instead of religion. Religion is how the elite control the masses. Who are we at war with now? Christians vs Muslims.

There's a smarter species out there

That is one way of looking at things.

Anther way of looking at things is, what threatens humanity? Is it religion, or is it the science that gave life to the use of fossil fuels and global warming?

Is it the Bible, or is it WMD's?

Is Jesus the cause for our concern, or is it genetically altered foods that cannot reproduce?

Is the cause of our concern those religion that teaches us to love our neighbor as ourselves, or is it science that produces Ai, a man-made created artificial intelligence that does not have a conscience? How will this Ai treat humans who are "destroying" the planet?

Love the neighbor? Is that what religions teach? I missed that sermon.

And Christianity is but one of many religions. Not the first or last.

 

[sealybobo]

As for Genesis, only if you take the Bible literally.

He meant what He said.

Who? The Bible was canonized by a group of guys in 325AD, it wasn't handed down by God as the Ten Commandments were to Moses. Do you only accept the King James interpretation?

Do you believe God told Moses those ten things?

 

[Divine Wind]

We are likely alone, there isn't so much as a microbe in the rest of the universe. Unless of course scientists can prove life can spring out of an inorganic environment by natural means.

There isn't? We know that? Show me a link that this has been proven.

If the old testament doesn't say we are alone why do ignorant Christians all think we are? It's always the nutters who believe it like retardedgysgt

Yes we do know that. There hasn't been a shred of evidence of life outside our planet.

We have not looked very hard. We haven't even collected soil samples from Mars yet for fossil microbes.

Trust me, the Universe is BIG.

Probes did look at Martian rock. They had drilling tools to look. What did they find: bupkis.

I don't think we know yet bro. In fact I think Mars had life on it billions of years before earth.

Did you pick that up with your antenna or did it come to you in a dream?

 

[sealybobo]

Based on recent exoplanet discoveries, Frank and Sullivan assume that one-fifth of all stars have habitable planets in orbit around them. This leads them to conclude that there should be other advanced technological civilization out there, unless the chance for developing such a civilization on a habitable planet in the observable universe is less than 1 in 1024 (a 1 with 24 zeros!). For our own Milky Way galaxy, the odds of being the only technologically advanced civilization are 1 in 60 billion. Thus, it’s very likely that other intelligent, technologically advanced species evolved before us. Even if only one in every million stars hosts a technologically advanced species today, that would still yield a total of about 300,000 such civilizations in the whole galaxy.

The Odds That We’re the Only Advanced Species in the Galaxy Are One in 60 Billion | Daily Planet | Air & Space Magazine

Good point, but we're still stuck with the Fermi Paradox:
Fermi Paradox | SETI Institute
The remark came while Fermi was discussing with his mealtime mates the possibility that many sophisticated societies populate the Galaxy. They thought it reasonable to assume that we have a lot of cosmic company. But somewhere between one sentence and the next, Fermi's supple brain realized that if this was true, it implied something profound. If there are really a lot of alien societies, then some of them might have spread out.

Fermi realized that any civilization with a modest amount of rocket technology and an immodest amount of imperial incentive could rapidly colonize the entire Galaxy. Within ten million years, every star system could be brought under the wing of empire. Ten million years may sound long, but in fact it's quite short compared with the age of the Galaxy, which is roughly ten thousand million years. Colonization of the Milky Way should be a quick exercise.

So what Fermi immediately realized was that the aliens have had more than enough time to pepper the Galaxy with their presence. But looking around, he didn't see any clear indication that they're out and about. This prompted Fermi to ask what was (to him) an obvious question: "where is everybody?"

This sounds a bit silly at first. The fact that aliens don't seem to be walking our planet apparently implies that there are no extraterrestrials anywhere among the vast tracts of the Galaxy. Many researchers consider this to be a radical conclusion to draw from such a simple observation. Surely there is a straightforward explanation for what has become known as the Fermi Paradox. There must be some way to account for our apparent loneliness in a galaxy that we assume is filled with other clever beings.

A lot of folks have given this thought. The first thing they note is that the Fermi Paradox is a remarkably strong argument. You can quibble about the speed of alien spacecraft, and whether they can move at 1 percent of the speed of light or 10 percent of the speed of light. It doesn't matter. You can argue about how long it would take for a new star colony to spawn colonies of its own. It still doesn't matter. Any halfway reasonable assumption about how fast colonization could take place still ends up with time scales that are profoundly shorter than the age of the Galaxy. It's like having a heated discussion about whether Spanish ships of the 16th century could heave along at two knots or twenty. Either way they could speedily colonize the Americas.

Consequently, scientists in and out of the SETI community have conjured up other arguments to deal with the conflict between the idea that aliens should be everywhere and our failure (so far) to find them. In the 1980s, dozens of papers were published to address the Fermi Paradox. They considered technical and sociological arguments for why the aliens weren't hanging out nearby. Some even insisted that there was no paradox at all: the reason we don't see evidence of extraterrestrials is because there aren't any.

There are lots of arguments that contradict this argument. They could have visited billions of years ago when trilobites ruled.

Maybe they did seed our planet. We don't know how life got started.

Maybe they are watching us and we don't know it.

Maybe the pharohs and kings were aliens who breed us into humans from monkeys?

No one knows but religion claims to know all the answers. Not buying it.

 

[sealybobo]

Right now at top speed it would take 80 thousand years. And we have an idea how the ship would work. We can produce food and water.

The honest truth is, who cares about another planet that can harbor life? We already live on one. What we need to do is master the universe. Science might one day do that. Religion wont

My responses were in response to Matthew's belief that we could ever be visited by any other life.

It CAN'T and WON'T, even if they could exist.

Even if lightspeed were possible, being physical creatures,traveling to the nearest star would take MUCH longer than 4 years. We will NEVER leave our solar system, and they will never come here.

Voyager 1 and 2 left our solar system. We are developing iPad size spacebot and wind sails that can get to alpha centuri. Maybe we seed that planet and in 1 billion years those humans think they are alone. Then when we can we send David Blane or David Copperfield to perform a few miracles then give them the king James and bounce

 

[sealybobo]

There isn't? We know that? Show me a link that this has been proven.

If the old testament doesn't say we are alone why do ignorant Christians all think we are? It's always the nutters who believe it like retardedgysgt

Yes we do know that. There hasn't been a shred of evidence of life outside our planet.

We have not looked very hard. We haven't even collected soil samples from Mars yet for fossil microbes.

Trust me, the Universe is BIG.

Probes did look at Martian rock. They had drilling tools to look. What did they find: bupkis.

I don't think we know yet bro. In fact I think Mars had life on it billions of years before earth.

Did you pick that up with your antenna or did it come to you in a dream?

It seems like it. I think we are going to find life was once on Mars.

 

[Divine Wind]

Based on recent exoplanet discoveries, Frank and Sullivan assume that one-fifth of all stars have habitable planets in orbit around them. This leads them to conclude that there should be other advanced technological civilization out there, unless the chance for developing such a civilization on a habitable planet in the observable universe is less than 1 in 1024 (a 1 with 24 zeros!). For our own Milky Way galaxy, the odds of being the only technologically advanced civilization are 1 in 60 billion. Thus, it’s very likely that other intelligent, technologically advanced species evolved before us. Even if only one in every million stars hosts a technologically advanced species today, that would still yield a total of about 300,000 such civilizations in the whole galaxy.

The Odds That We’re the Only Advanced Species in the Galaxy Are One in 60 Billion | Daily Planet | Air & Space Magazine

Good point, but we're still stuck with the Fermi Paradox:
Fermi Paradox | SETI Institute
The remark came while Fermi was discussing with his mealtime mates the possibility that many sophisticated societies populate the Galaxy. They thought it reasonable to assume that we have a lot of cosmic company. But somewhere between one sentence and the next, Fermi's supple brain realized that if this was true, it implied something profound. If there are really a lot of alien societies, then some of them might have spread out.

Fermi realized that any civilization with a modest amount of rocket technology and an immodest amount of imperial incentive could rapidly colonize the entire Galaxy. Within ten million years, every star system could be brought under the wing of empire. Ten million years may sound long, but in fact it's quite short compared with the age of the Galaxy, which is roughly ten thousand million years. Colonization of the Milky Way should be a quick exercise.

So what Fermi immediately realized was that the aliens have had more than enough time to pepper the Galaxy with their presence. But looking around, he didn't see any clear indication that they're out and about. This prompted Fermi to ask what was (to him) an obvious question: "where is everybody?"

This sounds a bit silly at first. The fact that aliens don't seem to be walking our planet apparently implies that there are no extraterrestrials anywhere among the vast tracts of the Galaxy. Many researchers consider this to be a radical conclusion to draw from such a simple observation. Surely there is a straightforward explanation for what has become known as the Fermi Paradox. There must be some way to account for our apparent loneliness in a galaxy that we assume is filled with other clever beings.

A lot of folks have given this thought. The first thing they note is that the Fermi Paradox is a remarkably strong argument. You can quibble about the speed of alien spacecraft, and whether they can move at 1 percent of the speed of light or 10 percent of the speed of light. It doesn't matter. You can argue about how long it would take for a new star colony to spawn colonies of its own. It still doesn't matter. Any halfway reasonable assumption about how fast colonization could take place still ends up with time scales that are profoundly shorter than the age of the Galaxy. It's like having a heated discussion about whether Spanish ships of the 16th century could heave along at two knots or twenty. Either way they could speedily colonize the Americas.

Consequently, scientists in and out of the SETI community have conjured up other arguments to deal with the conflict between the idea that aliens should be everywhere and our failure (so far) to find them. In the 1980s, dozens of papers were published to address the Fermi Paradox. They considered technical and sociological arguments for why the aliens weren't hanging out nearby. Some even insisted that there was no paradox at all: the reason we don't see evidence of extraterrestrials is because there aren't any.

There are lots of arguments that contradict this argument. They could have visited billions of years ago when trilobites ruled.

Maybe they did seed our planet. We don't know how life got started.

Maybe they are watching us and we don't know it.

Maybe the pharohs and kings were aliens who breed us into humans from monkeys?

No one knows but religion claims to know all the answers. Not buying it.

Yes, lots of arguments, not a shred of evidence. Why?

People who claim their religion is "the true religion" are fooling themselves. Religion is a path to spiritual enlightenment much like a martial art is a path to self-defense. To say only one is the correct one and all others are false is to totally misunderstand the point.

 

[Divine Wind]

Yes we do know that. There hasn't been a shred of evidence of life outside our planet.

We have not looked very hard. We haven't even collected soil samples from Mars yet for fossil microbes.

Trust me, the Universe is BIG.

Probes did look at Martian rock. They had drilling tools to look. What did they find: bupkis.

I don't think we know yet bro. In fact I think Mars had life on it billions of years before earth.

Did you pick that up with your antenna or did it come to you in a dream?

It seems like it. I think we are going to find life was once on Mars.

Again, a nice theory without a shred of evidence.

As it happens, I'm almost finished reading "The Martian". It's great. Unfortunately, the latest evidence is that the soil of Mars may be toxic to life:

Mars Soil May Be Toxic to Microbes

 

[MarkDuffy]

I see the Religionists ignored my questions.

Happens every time

 

[theHawk]

Did I ever claim that? No.

Next red herring.

All humans believed that. Turns out life can happen in places we didn't think could harbor life

You keep side-stepping the issue. This isn't about places that can "support life", I have no doubt there are plenty of worlds out there that can support life.

The creation of life, and a habitable zone that can support life are two entirely different topics. Life does not spontaneously manifest itself just because there is a habitable environment. Because of that fact, there is no grounds to believe life exists out on other planets simply because there is an environment that supports life.

How do you think life manifests? I say all the ingredients for life come from the inside of stars that died. They blew up and blew chunks of all the ingredients for life into the universe and when those microbes get frozen out in space they stay dormant until they crash into a planet that can harbor life.

Life is inside comets. Plant that life seed on a planet and look at what happened on earth. You get the diversity you see here. We know how life gets started on other planets because of what happened here. We don't have all the answers but we are pretty sure god didn't poof fully grown animals into existence.

There are lots of scientific theories I'd go with before the religious story of creation.

LMAO. Wow, microbes form in space after a super nova? Gawd you're a retard. The only thing that forms out of a super nova are heavier elements such as iron, as heavier elements can only be made my lesser elements combining at the atomic level during such an event.

"Life is inside comets"? Comets are made up of frozen water and rock. There has never been any scientific discovery to show otherwise.

"We don't have all the answers". Thanks Captain Obvious, you clearly don't have any answers.

Even the simplest life forms are very complex with so much DNA code our scientists today still can't decipher it all. Show us how atoms and molecules would ever naturally form such complex and intelligent code fond in the simplest DNA.

Every moon rock planet and person comes from inside stars. Look it up

Hey moron, I am well aware every element we are made of comes from dead stars. I did not dispute that, you said microbes get frozen in space. A microbe is a complex single cell life form and could not possibly form in space.




microbe
ˈmʌɪkrəʊb/
noun

1. a microorganism, especially a bacterium causing disease or fermentation.
   synonyms: microorganism, bacillus, bacterium, virus, germ;
   informalbug

 

[MarkDuffy]

Based on recent exoplanet discoveries, Frank and Sullivan assume that one-fifth of all stars have habitable planets in orbit around them. This leads them to conclude that there should be other advanced technological civilization out there, unless the chance for developing such a civilization on a habitable planet in the observable universe is less than 1 in 1024 (a 1 with 24 zeros!). For our own Milky Way galaxy, the odds of being the only technologically advanced civilization are 1 in 60 billion. Thus, it’s very likely that other intelligent, technologically advanced species evolved before us. Even if only one in every million stars hosts a technologically advanced species today, that would still yield a total of about 300,000 such civilizations in the whole galaxy.

The Odds That We’re the Only Advanced Species in the Galaxy Are One in 60 Billion | Daily Planet | Air & Space Magazine

Good point, but we're still stuck with the Fermi Paradox:
Fermi Paradox | SETI Institute
The remark came while Fermi was discussing with his mealtime mates the possibility that many sophisticated societies populate the Galaxy. They thought it reasonable to assume that we have a lot of cosmic company. But somewhere between one sentence and the next, Fermi's supple brain realized that if this was true, it implied something profound. If there are really a lot of alien societies, then some of them might have spread out.

Fermi realized that any civilization with a modest amount of rocket technology and an immodest amount of imperial incentive could rapidly colonize the entire Galaxy. Within ten million years, every star system could be brought under the wing of empire. Ten million years may sound long, but in fact it's quite short compared with the age of the Galaxy, which is roughly ten thousand million years. Colonization of the Milky Way should be a quick exercise.

So what Fermi immediately realized was that the aliens have had more than enough time to pepper the Galaxy with their presence. But looking around, he didn't see any clear indication that they're out and about. This prompted Fermi to ask what was (to him) an obvious question: "where is everybody?"

This sounds a bit silly at first. The fact that aliens don't seem to be walking our planet apparently implies that there are no extraterrestrials anywhere among the vast tracts of the Galaxy. Many researchers consider this to be a radical conclusion to draw from such a simple observation. Surely there is a straightforward explanation for what has become known as the Fermi Paradox. There must be some way to account for our apparent loneliness in a galaxy that we assume is filled with other clever beings.

A lot of folks have given this thought. The first thing they note is that the Fermi Paradox is a remarkably strong argument. You can quibble about the speed of alien spacecraft, and whether they can move at 1 percent of the speed of light or 10 percent of the speed of light. It doesn't matter. You can argue about how long it would take for a new star colony to spawn colonies of its own. It still doesn't matter. Any halfway reasonable assumption about how fast colonization could take place still ends up with time scales that are profoundly shorter than the age of the Galaxy. It's like having a heated discussion about whether Spanish ships of the 16th century could heave along at two knots or twenty. Either way they could speedily colonize the Americas.

Consequently, scientists in and out of the SETI community have conjured up other arguments to deal with the conflict between the idea that aliens should be everywhere and our failure (so far) to find them. In the 1980s, dozens of papers were published to address the Fermi Paradox. They considered technical and sociological arguments for why the aliens weren't hanging out nearby. Some even insisted that there was no paradox at all: the reason we don't see evidence of extraterrestrials is because there aren't any.

There are lots of arguments that contradict this argument. They could have visited billions of years ago when trilobites ruled.

Indeed, the troll knows how to use google, but he is very lazy.

Fermi paradox[edit]
Main article: Fermi paradox
The pessimists' most telling argument in the SETI debate stems not from theory or conjecture but from an actual observation: the presumed lack of extraterrestrial contact.[6] A civilization lasting for tens of millions of years might be able to travel anywhere in the galaxy, even at the slow speeds foreseeable with our own kind of technology. Furthermore, no confirmed signs of intelligence elsewhere have been recognized as such, either in our galaxy or in the observable universe of 2 trillion galaxies.[70][71] According to this line of thinking, the tendency to fill up all available territory seems to be a universal trait of living things, so the Earth should have already been colonized, or at least visited, but no evidence of this exists. Hence Fermi's question "Where is everybody?".[72][73]

A large number of explanations have been proposed to explain this lack of contact; a book published in 2015 elaborated on 75 different explanations.[74] In terms of the Drake Equation, the explanations can be divided into three classes:

• Few intelligent civilizations ever arise. This is an argument that at least one of the first few terms, R∗ · fp · ne · fl · fi, has a low value. The most common suspect is, fi, but explanations such as the rare Earth hypothesis argue that ne is the small term.
• Intelligent civilizations exist, but we see no evidence, meaning fc is small. Typical arguments include that civilizations are too far apart, it is too expensive to spread throughout the galaxy, civilizations broadcast signals for only a brief period of time, it is dangerous to communicate, and many others.
• The lifetime of intelligent, communicative civilizations is short, meaning the value of L is small. Drake suggested that a large number of extraterrestrial civilizations would form, and he further speculated that the lack of evidence of such civilizations may be because technological civilizations tend to disappear rather quickly. Typical explanations include it is the nature of intelligent life to destroy itself, it is the nature of intelligent life to destroy others, they tend to experience a technological singularity, and others.

These lines of reasoning lead to the Great Filter hypothesis,[75] which states that since there are no observed extraterrestrial civilizations, despite the vast number of stars, then some step in the process must be acting as a filter to reduce the final value. According to this view, either it is very hard for intelligent life to arise, or the lifetime of such civilizations, or the period of time they reveal their existence, must be relatively short.

Drake equation - Wikipedia

I believe both of those to be true. Moreso, Fermi assumes a civilization has the ability and also the desire to take multi-generational space voyages and then colonize. He also forgets simple things like food, fuel, physics & especially the extreme cost. It is too simplistic to even consider.

Maybe they did seed our planet. We don't know how life got started.

Maybe they are watching us and we don't know it.

Maybe the pharohs and kings were aliens who breed us into humans from monkeys?

No one knows but religion claims to know all the answers. Not buying it.

The hypothesis Earth was seeded from outside by either aliens or life containing impact begs the question. The question then becomes where did they come from? It is the same as the Religionists have with who begat God?