If we look at the way the universe behaves, quantum mechanics gives us fundamental, unavoidable indeterminacy, so that alternative histories of the universe can be assigned probability.
Murray Gell-MannRead
Sometimes the probabilities are very close to certainties, but they're never really certainties
Interpretation
The quote emphasizes that while some outcomes may seem almost guaranteed, there is always an element of uncertainty involved.
Murray Gell-Mann's quote reminds us that in the realm of probabilities, there are instances where certain outcomes appear almost inevitable; however, it is crucial to acknowledge that absolute certainties do not exist in reality. This highlights the importance of understanding that even in situations where we feel confident, the unpredictable nature of life and science means we must remain open to the possibility of unexpected results.
In practice
In a scientific conference discussing theories and predictions.
If we look at the way the universe behaves, quantum mechanics gives us fundamental, unavoidable indeterminacy, so that alternative histories of the universe can be assigned probability.
Just because things get a little dingy at the subatomic level doesn't mean all bets are off.
If someone says that he can think or talk about quantum physics without becoming dizzy, that shows only that he has not understood anything whatever about it.
What is especially striking and remarkable is that in fundamental physics a beautiful or elegant theory is more likely to be right than a theory that is inelegant.
The calculus was the first achievement of modern mathematics and it is difficult to overestimate its importance. I think it defines more unequivocally than anything else the inception of modern mathematics; and the system of mathematical analysis, which is its logical development, still constitutes the greatest technical advance in exact thinking.
True science teaches us to doubt and, in ignorance, to refrain.
Scientific theories tell us what is possible; myths tell us what is desirable. Both are needed to guide proper action.
To stop short in any research that bids fair to widen the gates of knowledge, to recoil from fear of difficulty or adverse criticism, is to bring reproach on science. There is nothing for the investigator to do but go straight on, 'to explore up and down, inch by inch, with the taper his reason;' to follow the light wherever it may lead, even should it at times resemble a will-o'-the-wisp.
People who dismiss science in favor of religion sometimes confuse the challenge of rigorously understanding the world with a deliberate intellectual exclusion that leads them to mistrust scientists and, to their detriment, what they discover.
The scientist is not responsible for the laws of nature. It is his job to find out how these laws operate. It is the scientist's job to find the ways in which these laws can serve the human will. However, it is not the scientist's job to determine whether a hydrogen bomb should be constructed, whether it should be used, or how it should be used. This responsibility rests with the American people and with their chosen representatives.
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