We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.
Stephen HawkingRead
Imaginary time is a new dimension, at right angles to ordinary, real time.
Interpretation
Imaginary time provides a theoretical framework that contrasts with our traditional understanding of time.
In this quote, Stephen Hawking introduces the concept of imaginary time, suggesting that it offers a new perspective on the nature of time itself. Unlike ordinary time, which is linear and subject to relativity, imaginary time exists in a dimension that could potentially allow for a more comprehensive understanding of the universe, challenging our conventional notions and opening up new possibilities in theoretical physics.
In practice
In a lecture on theoretical physics, this quote can be used to explain concepts of time.
We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.
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.
When I started working with NASA in 1989 as part of a mission to send spacecraft to Pluto, I knew it would take at least 10-15 years to see results of my efforts.
For me, science is already fantastical enough. Unlocking the secrets of nature with fundamental physics or cosmology or astrobiology leads you into a wonderland compared with which beliefs in things like alien abductions pale into insignificance.
I have harnessed the cosmic rays and caused them to operate a motive device.
It was strange, in a way, because there were no ideas involved in the laser that weren't already known by somebody 25 years before lasers were discovered. The ideas were all there; just, nobody put it together.
Nothing has tended more to retard the advancement of science than the disposition in vulgar minds to vilify what they cannot comprehend.
Those who are not shocked when they first come across quantum theory cannot possibly have understood it.
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