A Quote by Stephen Hawking
I believe alien life is quite common in the universe, although intelligent life is less so. Some say it has yet to appear on planet Earth.
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Intelligent life can't be all that common because it's really rare on Earth and especially since we define ourselves to be intelligent. But in the eyes of an alien coming here who has the technology to make it here, they might observe us and conclude that there's no sign of intelligent life on Earth.
[In the Universe it may be that] Primitive life is very common and intelligent life is fairly rare. Some would say it has yet to occur on Earth.
What we want is another sample of life, which is not on our tree of life at all. All life that we've studied so far on Earth belongs to the same tree. We share genes with mushrooms and oak trees and fish and bacteria that live in volcanic vents and so on that it's all the same life descended from a common origin. What we want is a second tree of life. We want alien life, alien not necessarily in the sense of having come from space, but alien in the sense of belonging to a different tree altogether. That is what we're looking for, "life 2.0."
Only when science and technology are used with human concern in a world in which all of the earth's resources are held as the common heritage of all of the earth's people can we truly say that there is intelligent life on Earth.
I don't see why there is no intelligent alien life in the universe.
The universe is specifically tweaked to enable life on earth-a planet with scores of improbable and interdependent life-supporting conditions that make it a tiny oasis in a vast and hostile universe.
And that, quite simply, is the issue. We live in a finite world with finite resources. Although it may sometimes seem quite big, earth is really very small - a tiny blue and green oasis of life in a cold universe.
My friends, I tell you repeatedly that the illusion that Life creates is very, very intelligent. The illusion itself is intelligent! Just understand how intelligent the intelligence must be in order to create an intelligent illusion. The intelligent illusion is so intelligent it will appear real to man every moment of his daily life!
Science has an uncomfortable way of pushing human beings from center stage. In our prescientific stories, humans began as the focal point of Nature, living on an Earth that was the center of the universe. As the origins of the Earth and of mankind were investigated more carefully, it became clear that Nature had other interests beyond people, and the Earth was less central than previously hoped. Humankind was just one branch of the great family of life, and the Earth is a smallish planet orbiting an unexceptional sun quite far out on one arm of a run-of-the-mill spiral galaxy.
The myths underlying our culture and underlying our common sense have not taught us to feel identical with the universe, but only parts of it, only in it, only confronting it - aliens... within I don't know how many years, but in not too long a time, it's going to become basic common sense that you are not some alien being who confronts an external world that is not you, but that almost every intelligent person will have the feeling of being an activity of the entire universe.
Common sense dictates that a trace gas needed for life on the planet would not be the cause for destroying life on the planet. Common sense dictates that what has happened before without man can happen again with man. Common sense would dictate that you not believe me, or any one else, but go look for YOURSELF.
If an alien visited Earth, they would take some note of humans, but probably spend most of their time trying to understand the dominant form of life on our planet - microorganisms like bacteria and viruses.
Our planet has been around only for four and a half billion years. Let's imagine a planet that has life on it such as life is on Earth and it's seven billion years old. Let's say that planet evolved intelligence. Well, that intelligence would be way more advanced than what we call intelligence here on Earth. How long has intelligence been around on Earth as we've come to define it?
It is said that Mahatma Gandhi, when asked about Western civilization, remarked, 'I think it would be a good idea.' That's how I feel about intelligent life on Earth, especially when I think about the question of what truly intelligent life might look like elsewhere in the universe.
The universe is so immense that it appears immutable, and that the duration of a planet such as that of the earth is only a chapter, less than that, a phrase, less still, only a word of the universe’s history.
We think that life develops spontaneously on Earth, so it must be possible for life to develop on suitable planets elsewhere in the universe. But we don't know the probability that a planet develops life.
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