We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.
Observations indicate that the universe is expanding at an ever-increasing rate. It will expand forever, getting emptier and darker. Although the universe doesn’t have an end, it had a beginning in the Big Bang. One might ask what is before that but the answer is that there is nowhere before the Big Bang just as there is nowhere south of the South Pole.
Interpretation
What this quote means
The universe is continuously expanding, and while it had a beginning, it does not have an end.
This quote by Stephen Hawking encapsulates the complex nature of the universe and its expansion. It highlights the unprecedented phenomena occurring in the cosmos, such as the irreversible expansion that leads to an eventual emptiness. Furthermore, it challenges our understanding of time and space by stating that asking what came before the Big Bang is meaningless, as there were no spatial dimensions in which 'before' could exist, similar to the concept that there is no place south of the South Pole. This insight invites deep philosophical reflections on existence and the universe's nature.
Themes
In practice
Example use cases
In a lecture about the universe, I used this quote to illustrate the infinite nature of cosmic expansion.
More from Stephen Hawking
All quotes →I regard the brain as a computer which will stop working when its components fail. There is no heaven or afterlife for broken down computers; that is a fairy story for people afraid of the dark.
It surprises me how disinterested we are today about things like physics, space, the universe and philosophy of our existence, our purpose, our final destination. Its a crazy world out there. Be curious.
I was not a good student. I did not spend much time at college; I was too busy enjoying myself.
The world has changed far more in the past 100 years than in any other century in history. The reason is not political or economic but technological-technologies that flowed directly from advances in basic science. Clearly, no scientist better represents those advances than Albert Einstein: TIME's Person of the Century.
In my opinion, there is no aspect of reality beyond the reach of the human mind.
Similar quotes
More than any other product of human scientific culture scientific knowledge is the collective property of all mankind.
Dreams about the future are always filled with gadgets.
The scientific community should work as hard as possible to address major issues that affect our everyday lives such as climate change, infectious diseases and counterterrorism; in particular, 'clean energy' research deserves far higher priority. And science and technology are the prime routes to tackling these issues.
Do you realize that the 850 billion dollar bank bailout, that sum of money is greater than the entire 50 year running budget of NASA. And so when someone says, 'We don't have enough money for this space probe.' No, it's not that you don't have enough money. It's that the distribution of money that you're spending is warped in some way that you are removing the only thing that gives people something to dream about tomorrow.
People who look for the first time through a microscope say, 'Now I see this, and then I see that,' and even a skilled observer can be fooled. On these observations I have spent more time than many will believe, but I have done them with joy, and I have taken no notice of those who have said, 'Why take so much trouble,' and, 'What good is it?'
You can't even begin to understand biology, you can't understand life, unless you understand what it's all there for, how it arose - and that means evolution.