/sci/ - Science & Math

number of alien lifeforms we will ever establish contact with: 0

number of planets with life on them in the milky way: 1, for all practical purposes

>>2571543
Very likely there is other life in the Milky Way. Almost zero chance of there being other intelligent life.

http://hanson.gmu.edu/greatfilter.html

>>2571543
The Galaxy is fucking huge, and we are kinda on the outskirts of the galaxy. It is possible the the galaxy is oozing with thousandas of space fairling civilizations, we just have the shit luck of being too far out for any of them to really take interest in us.

Star wars types civilizations could litterally be happening in our galaxy, but we are just in the boonies! Which has probably actually been to our benifit!

>>2571597
WIN

>>2571597
yeah tis truth

>>2571597
No, it isn't. The probability simply isn't on your side. Do the math yourself. Take the most conservative possible estimate of the expansion rate of any given spacefaring civilization and the probability is STILL practically zero.

>>2571597
>>2571620
>>2571625
Massive samefaggotry.

>>2571626
U are talking out of your ass.

>>2571626
>doens't know what probability is

>>2571597
>>2571620
>>2571625
>>2571644
>>2571648
You could at least pretend not to be the same teenage idiot.

>>2571656
>thinks everyone is the samefag

>>2571597
>>2571597

>shit luck of being too far out for any of them to really take interest in us.
don't think so Tim.
I say that they either have already discovered us, but take no interest in making an official contact (because, why would they want to? Giving humanity ANY advanced technology would have terrible consequences).
Or, the FTL exploration is impossible and we're really out of luck here.

>>2571671
You don't need FTL travel to explore the galaxy dumbshit!

Go learn some real physics and stop talking out of your ass!

http://www.phys.ncku.edu.tw/mirrors/physicsfaq/Relativity/SR/rocket.html

>>2571679
>theories, theories everywhere
Nice way to be a cocksucking mad faggot.

hey guise what the fuck is that bright shit on the middle?

>>2571702
Collector Base

>>Lower bound estimate for the number of exoplanets orbiting within the habitable zone of their star in the milky way galaxy: 500 million

So lets say one in 10,000 of those habitable zone planets has intelligent life, and approximate the milky way as a disk of radius 100,000 light years.

There are 5000 intelligent civilisations spread out over 3.14 × 10^10 square light years. The average distance between any two civilisations is over 800 light years.

Estimates and probabilities are far to generous aka The Drake Equation.

The main problem is lack of scientific evidence as we only have on source of data. Using our own planet as a guide, factoring in civilization self destruction, deadly cosmic radiation, extinction events like asteroids, super volcanoes etc. You quickly start to realize that advanced space faring aliens may not even exist at all and in fact we could possibly be the first, or one of a handful of 'intelligent beings' in this galaxy.

It's taken 4 billion years for us to get here.
Intelligent life is not some end game of evolution.

50 billion exoplanets?
That's some lower bound all right. I'd quesstimate approximately 1 trillion exoplanets.

>>2571694
But we use SR is everyday calcualtions dumbshit. It is proven to be correct.

How fuckin retarded are you?

Probability means jack shit.

No one fucking knows, No one has a has a basis to even make a statement on this, for all we know, there could be some space faring civilization that is made from rocks or some shit.

The very limited scope we have on this planet means nothing when you have the infinite possibilities in our Galaxy alone.

this thread is now about your face when we will all die in less than 50 years and all this shit is useless for us inb4 herp derp inmortality in 2035 or some shit

>>2571747

Nice logic. Lets all just sit here in our computer chairs, doing nothing, learning nothing, not a care in the world because we are going to die in 50 years.

>>2571747
>my face when everybody realised this and the thread died

>>2571762
Pragmatism, when taken to extremes, will lead to extinction. Just like anything else.

People should read more Niven. There are a world of lessons in his stories.

>>2571597
man that is one hot goth slut

In other news, why are we debating the existence of aliens when you can go to Egypt and see the Pyramids for yourself!?!?!

I'll get my coat.

>>2571818

>>2571791
Whoa.

>>2571569 Almost zero chance of there being other intelligent life

Unless of course the potential for intelligent life is an integral part of the universe and not as random as we think it is.

>>2571863
Don't go there.

Life may not be as rare as some think, but that doesn't automatically mean life is the meaning of the universe.
Quite far from it in fact.

>>2571883
Don't go there.

Life may be as rare as some think, but that doesn't automatically mean life isn't the meaning of the universe.
Quite far from it in fact.

>>2571863
>>2571891
------------------------WARNING------------------------

----------confirmed for troll, do not reply----------

------------------------WARNING------------------------

>>2571883

Physical laws determine the formation of planets and stars, they're guaranteed to happen the same way in the far side of the universe as it happens here.

Physical laws determine the formation of life when a planet or habitat has been formed to support it.

>>2571899

i don't know if i've ever seen/heard of even an first-principles order-of-magnitude estimate for how likely "entropy-exporting self-replicating cell structures that are small and numerous enough for trial-and-error/evolutionary mechanisms to kick in" are to form spontaneously; usually the argument is either "too complicated to be natural" or "carbon chemistry is rich + Earth isn't special = life is everywhere"

>>2571706
>>2571706
Fucking lol'd.

>>2571901
Just aching to do that, were you?

I don't want to explain why that is stupid because it's been explained so many fucking times here and elsewhere.

>>2571925

No it hasn't you bullshitting fuck.

>>2571925
Just aching to do that, were you?

I do want to explain why that is not stupid because it's been explained so many fucking times here and elsewhere.

>>2571721
Or, you could go to the link, and actually read what's in it.

Kepler collected a lot of data on exoplanets, and discovered roughly 50/1000 planets orbiting within the habitable zone of their star.

We have a rough estimate of around 300 billion suns in the milky way. Kepler's data suggests a *lower bound* of 50 billion exoplanets and 500 million habitable exoplanets.

This isn't something coming out of the Drake Equation. This is real scientific data that is telling us how many planets are within our galaxy.