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.
Eventually we must leave Earth-at least a certain number of our progeny must as our sun approaches the end of its solar life cycle. But just as terrestrial explorers have always led the way for settlers, this will also happen extraterrestrially. Earth is our cradle, not our final destiny.
Science is simply common sense at its best.
The march of science and technology does not imply growing intellectual complexity in the lives of most people. It often means the opposite.
There are a number of attributes of species and populations that are not of any particular selective advantage to any single individual in a population but that are of great advantage to the population as a whole.
In Einstein's equation, time is a river. It speeds up, meanders, and slows down. The new wrinkle is that it can have whirlpools and fork into two rivers. So, if the river of time can be bent into a pretzel, create whirlpools and fork into two rivers, then time travel cannot be ruled out.
The problem with data is that it says a lot, but it also says nothing. 'Big data' is terrific, but it's usually thin. To understand why something is happening, we have to engage in both forensics and guess work.
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