We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.
Stephen HawkingRead
If the rate of expansion one second after the Big Bang had been smaller by even one part in a hundred thousand million million, it would have recollapsed before it reached its present size. On the other hand, if it had been greater by a part in a million, the universe would have expanded too rapidly for stars and planets to form.
Interpretation
What this quote means
The universe's expansion rate was incredibly precise for its development.
Stephen Hawking emphasizes the delicate balance in the conditions of the universe's expansion after the Big Bang. A minuscule change in the rate of expansion would have dramatically altered the universe's ability to form celestial structures like stars and planets, highlighting the extraordinary fine-tuning necessary for the existence of life as we know it.
Themes
UniverseExpansionBig BangFine-TuningCosmology
In practice
Example use cases
In a lecture on the origins of the universe, one might quote Hawking to illustrate the precision needed for cosmic formation.
More from Stephen Hawking
All quotes βI 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.
Stephen HawkingRead
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.
Stephen HawkingRead
I was not a good student. I did not spend much time at college; I was too busy enjoying myself.
Stephen HawkingRead
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.
Stephen HawkingRead
In my opinion, there is no aspect of reality beyond the reach of the human mind.
Stephen HawkingRead
Similar quotes
ZOOLOGY, n. The science and history of the animal kingdom, including its king, the House Fly ("Musca maledicta"). The father of Zoology was Aristotle, as is universally conceded, but the name of its mother has not come down to us.
Ambrose BierceRead
When a physician is called to a patient, he should decide on the diagnosis, then the prognosis, and then the treatment. ... Physicians must know the evolution of the disease, its duration and gravity in order to predict its course and outcome. Here statistics intervene to guide physicians, by teaching them the proportion of mortal cases, and if observation has also shown that the successful and unsuccessful cases can be recognized by certain signs, then the prognosis is more certain.
Claude BernardRead
Universe consists of frozen light.
David BohmRead
Some claim evolution is just a theory. As if it were merely an opinion. The theory of evolution, like the theory of gravity, is a scientific fact. Evolution really happened. Accepting our kinship with all life on Earth is not only solid science. In my view, itβs also a soaring spiritual experience.
Neil Degrasse TysonRead
And now the announcement of Watson and Crick about DNA. This is for me the real proof of the existence of God.
Salvador DaliRead
What the scientists have always found by physical experiment was an a priori orderliness of nature, or Universe always operating at an elegance level that made the discovering scientist's working hypotheses seem crude by comparison. The discovered reality made the scientists exploratory work seem relatively disorderly.
R. Buckminster FullerRead