The universe is pretty big, it's hard to imagine that we are alone?

Question

what do you think?

Answer 1

I was abducted by aliens and experimented on.

Coach

Answer 2

The Earth is also pretty big, is it hard to imagine that we are alone? I mean a lot of strange things were spotted on Earth.

Besides, like it has been said here, with 6.500.000.000 humans, we are exactly alone. Granted though we should have 100 times more if we want more closer companies.

Answer 3

I'm a very logical person so I'll refer you to the Drake Equation.

This equation expresses the number of technological civilizations that might exist among the stars.

R * FP * NE * FL * FI * FC * LN = N = number of advanced technical civilizations emitting detectable radio signals.

R = mean rate of star formation averaged over the lifetime of the galaxy.
FP = fraction of stars with planetary systems.
NE = mean number of planets per system with environments suitable for the origin of life.
FL = fraction of such planets on which life does develop.
FI = fraction of such planets on which intelligent life rises during the lifetime of the local sun.
FC = fraction of planets on which advanced technical civilizations rises.
L = lifetime of this technical civilization.

When explaining this equation, Carl Sagan once said the formula means that at least 1 million of the 100 billion stars in our Milky Way galaxy have planets which have developed advanced intelligent civilizations. Now, if we consider the astronomical fact that there are over 10 billion galaxies in the universe, each holding at least another million solar systems, one may start to think that we may not be the only life in the universe.

Most critics of alien life usually still calculate N as being approximate to 100 civilizations. Of course there is always the "Fermi Paradox".

he Fermi paradox is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilizations and the lack of evidence for or contact with such civilizations.

The extreme age of the universe and its vast number of stars suggest that extraterrestrial life should be common. Considering this with colleagues over lunch in 1950, the physicist Enrico Fermi is said to have asked: "Where are they?" [1] Fermi questioned why, if a multitude of advanced extraterrestrial civilizations exist in the Milky Way galaxy, evidence such as probes, spacecraft or radio transmissions has not been found. The simple question "Where are they?" (alternatively, "Where is everybody?") is possibly apocryphal, but Fermi is widely credited with simplifying and clarifying the problem of the probability of extraterrestrial life.

Then there is always the "Kardashev scale" which assigns point values to different civilizations. The whole scale and descriptions are to big to post here but I left a link to a great sight in the sources. One thing I want to point out though is that if a 2nd level civilation harnesses the power of one star and biulds a "Dyson Sphere", the artifical radiation generated would be detectable on our radio telescopes. This either means that no 2nd level civilizations exist, or we have not detected "Dyson Sphere" radiation yet.

Hope that helps.

Answer 4

If some higher civilizations exists they might be pretty aware that people is not alone but enjoying company of each other, and most likely would be aware of our mental conditions. There is a factual dissonance among people based on axiom: if humanity cannot be at peace with itself then it cannot be at peace with anything else. peaceful civilizations cannot show up, for it will be another conflict ...unless presumable civilization will take over using all kind of force. That violates the law of Free Will...so do not expect them soon. Same story with second coming of Messiah. Our beliefs is based on Free Will...Everything we build laying upon our beliefs, any kind of beliefs... Messiah savior cannot bring instant Bliss , first He must destroy existing wine sheepskin to put new wine in....So he will not appear unless we become peaceful...otherwise it will be conflict leading to another Crucifixion....No aliens no Messiahs will bring us salvation...We must do it....whether alone or with company of fellow men

Answer 5

We are alone in the sense that it may be utterly impossible for us to ever communicate with other intelligent life in our universe.

We will have to wait and see if any means of communication and transportation is developed that allows us to bridge the enormous distances.

Perhaps all we have to do is wait until the star of another solar system that also has intelligent life passes near by in our enormous merry go round we call our Milky Way.

Answer 6

I'm sure we're not alone, but we probably are the only life forms in the universe with email.

Xan Shui,
Philosophic Philanthropist, Honest Man

Answer 7

The universe is still expanding. We can not be the only living things in existence, or coming into existence. We just haven't found others yet.

Answer 8

I agree. Given the sheer number of galaxies and planets out in the universe, odds point in the favour of another life-form found SOMEWHERE, thanks to probabilities, even when considering the needed factors to the creation of life in the first place.

Answer 9

the universe is a big place and we are looking for one specific thing yeah i think its going to take some time before that happens.you got to through lots of trash before you get the gold.

Answer 10

Life is endemic in the Universe.

Answer 11

I feel very alone... The universe is too far away, too much unknown.