A Quote by Paul Davies
If we're looking for intelligence in the universe I think everybody assumes that this has to start with life and so the question is: "How likely is it that there will be life elsewhere in the universe?"
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Astrobiology is the science of life in the universe. It's an attempt to scientifically deal with the question of whether or not we're alone in the universe, looking at the past of life, the present of life, and the future of life. It's an interdisciplinary study incorporating astronomy, biology, and the Earth sciences.
The chances of human beings being the only intelligent form of life in the universe are so minuscule that it's really kind of crazy to actually - no scientist could ever argue that we would be alone. It's much more likely that there are hundreds of thousands of other intelligences and other life forms out there in the universe just based on a strictly mathematical formula. And what that means is that artificial intelligence has probably already occurred in the universe.
The most likely possibility, favored by current data, is that the universe will die in Ice, not Fire. However, personally I believe that trillions of years from now, we (if we are still around) will have the technology to leave the universe, perhaps in an interdimensional life boat, and move to a warmer universe.
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.
I suppose my interest in looking for life elsewhere in the universe really dates back to my teens. What teenager doesn't look up at the sky at night and think am I alone in the universe? Well most people get over it, but I never did and though I made a career more in physics and cosmology than astrobiology I've always had a soft spot for the subject of life because it does seem so mysterious.
I believe the universe wants to be noticed. I think the universe is inprobably biased toward the consciousness, that it rewards intelligence in part because the universe enjoys its elegance being observed. And who am I, living in the middle of history, to tell the universe that it-or my observation of it-is temporary?
Given the millions of billions of Earth-like planets, life elsewhere in the Universe without a doubt, does exist. In the vastness of the Universe we are not alone.
Most of us think that decisions such as where shall I live, with whom shall I partner, what shall I pick as a career for my life are the most important decisions that we make. But from the point of view of the universe these decisions are not that important. Within you, you have already made decisions about who you are, what the universe is and how you will relate to other people and how you will relate to the universe and these decisions are creating consequences in your life moment by moment.
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.
The universe is very big - there's about 100,000 million galaxies in the universe, so that means an awful lot of stars. And some of them, I'm pretty certain, will have planets where there was life, is life, or maybe will be life. I don't believe we're alone.
Everybody has to solve that "meaning of life" and purpose question for themselves. Everybody does it their own way. I think you have to be thoughtful about the way that you're doing it. So I describe it as purpose. If you can think about leading a purposeful life - not just an accumulation but you actually make the world a better place - then I think in the grand scheme of the universe, that that explains our existence. If not, we're just passing through. We're grains of sand and we're blowing in the breeze.
I once thought that if I could ask God one question, I would ask how the universe began, because once I knew that, all the rest is simply equations. But as I got older I became less concerned with how the universe began. Rather, I would want to know why he started the universe. For once I knew that answer, then I would know the purpose of my own life.
It seems to me that when confronted with the marvels of life and the universe, one must ask why and not just how. The only possible answers are religious. . . . I find a need for God in the universe and in my own life.
By the law of averages, there has to be life elsewhere. The universe is so huge, and I don't think God would have created this whole big huge cosmos and just say there's only going to be life on Earth, and that's it.
Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us.
There comes a point in your life when you realize how quickly time goes by, and how quickly it has gone. Then it really speeds up exponentially. With that, I think you start to put a lot of things into context; you start to see how huge the world is, and really, the universe.
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