ZenHalfTimeCrock
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The human mind does like to fantasize, though.I feel like I've made this point on here before but as it seems to be back in vogue... I see a lot of people make the argument "the universe is so vast and beyond our comprehension, the odds are that there must be some other life out there."
From a purely statistical standpoint, this is actually not a very robust argument at all. It's a kind of mental trap or fallacy that intuitively feels correct, but doesn't hold water. Humans are really not very good at understanding extreme odds intuitively.
We have a sample size of one. So we cannot infer anything about the odds of life occurring without knowing intimately the mechanism through which life comes to be (which we know a bit about, but safe to say we are far from understanding fully). It could be very common, it could be rare but not so rare we won't find, but it also could be so incredibly rare that the odds of life occurring are the same order of magnitude small as the universe is large.
Put it this way, say you shuffle a deck of cards and deal it. The odds that all the cards come out in perfect order - all hearts Ace to King, then all diamonds Ace to King etc. is about 10^68. That's way more than the number of planets in the observable universe. There's a very real possibility that the odds of intelligent life occurring are at that level of magnitude. So if you shuffled a deck of truly random cards on every planet in the entire universe, and dealt it every second for the entire time the universe has existed, you'd be unlikely to see a perfect deck dealt even once.
There's this thing called the Anthropic Principle. We look around and say, "Well, we're here, so how unlikely can it possibly be? If we're here, then it must be common." But what this perspective misses is that if the conditions were different and we weren't here then we wouldn't be able to even ask that question in the first place. To enquire about the frequency of life in the universe, you necessarily need to exist to begin with. In both a universe where there is intelligent life on every planet, and a universe where we are the only ones, we would be thinking exactly the same thing - the actual probability in play has no impact on that way of thinking.
So this is the reason that, while I know it's not common to think this way at the moment, if people ask me "is there life out there?" I have to concede, the chances are there actually might not be. And I have no good evidence to suggest otherwise.
Unless of course you believe Lue Elizondo...
That's a good argument, but is only relevant if you adhere to the principle that there is only 1 "mechanism through which life comes to be". As soon as you accept that there are (possibly many) such mechanisms, your analogy falls over.I feel like I've made this point on here before but as it seems to be back in vogue... I see a lot of people make the argument "the universe is so vast and beyond our comprehension, the odds are that there must be some other life out there."
From a purely statistical standpoint, this is actually not a very robust argument at all. It's a kind of mental trap or fallacy that intuitively feels correct, but doesn't hold water. Humans are really not very good at understanding extreme odds intuitively.
We have a sample size of one. So we cannot infer anything about the odds of life occurring without knowing intimately the mechanism through which life comes to be (which we know a bit about, but safe to say we are far from understanding fully). It could be very common, it could be rare but not so rare we won't find, but it also could be so incredibly rare that the odds of life occurring are the same order of magnitude small as the universe is large.
Put it this way, say you shuffle a deck of cards and deal it. The odds that all the cards come out in perfect order - all hearts Ace to King, then all diamonds Ace to King etc. is about 10^68. That's way more than the number of planets in the observable universe. There's a very real possibility that the odds of intelligent life occurring are at that level of magnitude. So if you shuffled a deck of truly random cards on every planet in the entire universe, and dealt it every second for the entire time the universe has existed, you'd be unlikely to see a perfect deck dealt even once.
There's this thing called the Anthropic Principle. We look around and say, "Well, we're here, so how unlikely can it possibly be? If we're here, then it must be common." But what this perspective misses is that if the conditions were different and we weren't here then we wouldn't be able to even ask that question in the first place. To enquire about the frequency of life in the universe, you necessarily need to exist to begin with. In both a universe where there is intelligent life on every planet, and a universe where we are the only ones, we would be thinking exactly the same thing - the actual probability in play has no impact on that way of thinking.
So this is the reason that, while I know it's not common to think this way at the moment, if people ask me "is there life out there?" I have to concede, the chances are there actually might not be. And I have no good evidence to suggest otherwise.
Unless of course you believe Lue Elizondo...
First of all, brilliant post.I feel like I've made this point on here before but as it seems to be back in vogue... I see a lot of people make the argument "the universe is so vast and beyond our comprehension, the odds are that there must be some other life out there."
From a purely statistical standpoint, this is actually not a very robust argument at all. It's a kind of mental trap or fallacy that intuitively feels correct, but doesn't hold water. Humans are really not very good at understanding extreme odds intuitively.
We have a sample size of one. So we cannot infer anything about the odds of life occurring without knowing intimately the mechanism through which life comes to be (which we know a bit about, but safe to say we are far from understanding fully). It could be very common, it could be rare but not so rare we won't find, but it also could be so incredibly rare that the odds of life occurring are the same order of magnitude small as the universe is large.
Put it this way, say you shuffle a deck of cards and deal it. The odds that all the cards come out in perfect order - all hearts Ace to King, then all diamonds Ace to King etc. is about 10^68. That's way more than the number of planets in the observable universe. There's a very real possibility that the odds of intelligent life occurring are at that level of magnitude. So if you shuffled a deck of truly random cards on every planet in the entire universe, and dealt it every second for the entire time the universe has existed, you'd be unlikely to see a perfect deck dealt even once.
There's this thing called the Anthropic Principle. We look around and say, "Well, we're here, so how unlikely can it possibly be? If we're here, then it must be common." But what this perspective misses is that if the conditions were different and we weren't here then we wouldn't be able to even ask that question in the first place. To enquire about the frequency of life in the universe, you necessarily need to exist to begin with. In both a universe where there is intelligent life on every planet, and a universe where we are the only ones, we would be thinking exactly the same thing - the actual probability in play has no impact on that way of thinking.
So this is the reason that, while I know it's not common to think this way at the moment, if people ask me "is there life out there?" I have to concede, the chances are there actually might not be. And I have no good evidence to suggest otherwise.
Unless of course you believe Lue Elizondo...
That's a good argument, but is only relevant if you adhere to the principle that there is only 1 "mechanism through which life comes to be". As soon as you accept that there are (possibly many) such mechanisms, your analogy falls over.
Sticking to the deck of cards analogy, I can't do the math but I suspect that if you ignore suits, then the chances of a perfect deck (ie cards in the right order but suits ignored) increases manyfold.
First of all, brilliant post.
But I believe we exist because our planet is in a Goldilocks zone. Just the right distance from our sun. So shouldn't the question be what are the odds of another planet/rock being a similar distance from another respective solar body? I'm not a mathematician, bit given it's believed there are trillions of stars in the universe, what do we reckon the probability is of another rock being a perfect distance from a star? High? Low? Again, I'm not a mathematician but I don't think it's unreasonable to suggest there may be another in it's own Goldilocks zone; and I use the term "own Goldilocks zone" because we have no way of knowing if life has flourished under slightly different conditions that brought us here; such as temperature, abundance of a certain gas, etc.
Me personally? I want life to exist elsewhere, mainly because it would be a crying shame if we are the only ones in a canvas as vast as the universe. Comparatively, we are not even a grain of sand, we are subatomic. And it would be pretty sad if we fuck it up and all we're left with us is a vast, uninhabited space of nothingness.