Okay, nearly infinite. And technically, it is infinite, it’s just the extent of the matter that’s not.
https://en.wikipedia.org/wiki/Probability
If you roll 100 times a 100 face dice, that doesnt mean you will get one 100, even if you have 1% chances of having it, and in contrary you could get a hundred 100’s, probabilities is a bitch 
JeffMod: the physical universe we currently reside in is not infinitely large. It is, however large enough for extraterrestrial life to be extremely likely to exist.
Actually its because of the pressure. Its too low for liquid water to exist in the open atmosphere. As soon as liquid H2O becomes exposed to the environment, it becomes a gas. Water exists on Mars under the surface, just not on the surface.
Well yes, but that’s not really what we’re talking about here. Say that the probability of some very implausible, such as the ‘perfect’ Earth being formed, is very, very small. What we’re saying is that if you repeat the process of planet formation enough times, in this case, an infinite amount of times, the probability will, inevitably, become one. In effect, we’re rolling a million sided an infinite amount of times; even though the chance of it landing on any particular spot after one roll is very low, the chance of it landing on that one spot after an infinite number of rolls is, of course, a certainty.
There is probably intelligent life out there somewhere, there’s none here.
Actually, it isn’t. There is life at the tops of mountains and at the bottom of the deepest oceans. That is a great diversity of conditions.
Like heavier-than-air flying machines.
Simple. It’s a “backwards” way of looking at things. As the puddle is remarking on how perfect the hole is for it, the puddle ignores the fact that it is actually perfect for the hole, not the other way around.
Same, too, with life on this planet. We remark on how perfect this world is for us, but ignore the fact that we are actually perfect for this world.[COLOR=‘Black’] For varying definitions of the word “perfect”.
You assume that life has to exist as it does on this planet. Why?
The universe is hostile for us living things, life is possible only because the rules allow it.
Life is not meant specially to appear, its just the result of complex phenomens that we only begin to understand, we might discover other “strange” stuff in the universe, just like we did with black holes, such things stays hidden for our eyes, but they are probably out there, like black matter.
In the other hand, when all conditions are reached in order for life to appear, evolution will start it’s job, allowing strongs to live, and if given enough time, complex lifeforms might appear.
All this happened once from what we know, so it would foolish to think it never happened before or will happen again.
It is possible that life exists somewhere in the universe, in basic or complex forms, looking alike what we know or not, but we will never see it, like some things it will stay a mistery for ever that only people imagination still give a sense.
In the end searching for life in the universe is good but we should focus on saving it in our own world.
Like around hydrothermal vents where the pressure and heat are intense?
There probability of us being alone is 0.
no, it is possible but it is very close to zero
Yeah
Garcian: Awesome! :freeman:
They honestly call it the “Goldilocks Zone”? Scientists are weird people…
As daniel said: We’re perfect for our world, not the other way around. I believe life can exist almost anywhere, and conditions aren’t important because the organisms adapt to the world and will learn to cope with the harsh conditions.
I see a certain flaw in reasoning here - some of you assume that the conditions required to create life are more or less constant across entire universe, which doesn’t have to be the case (link). Even if the universe was infinite the probability of life occurrence on some other planets wouldn’t have to be infinite. It is possible that the conditions for life exist only in our galaxy group and adjacent groups, which of course leaves a lot of chances for life, but it’s far less than “close to infinity”.
neil degrasse tyson uses the term a lot. i didn’t know that was what it was actually called, though.
