Science is a way to not fool ourselves.
Carl SaganRead
That we can now think of no mechanism for astrology is relevant but unconvincing. No mechanism was known, for example, for continental drift when it was proposed by Wegener. Nevertheless, we see that Wegener was right, and those who objected on the grounds of unavailable mechanism were wrong.
Interpretation
Skepticism towards new ideas should not dismiss their potential truth.
Carl Sagan emphasizes that the absence of a known mechanism should not invalidate a theory. He illustrates this with the example of continental drift, which faced skepticism until evidence validated Wegener's proposal. This quote reminds us that just because we cannot yet explain something does not mean it is false; we must remain open to new ideas and discoveries.
In practice
In a science class discussion about the validity of fringe theories.
Science is a way to not fool ourselves.
In more than one respect, the exploring of the Solar System and homesteading other worlds constitutes the beginning, much more than the end, of history.
How smart does a chimpanzee have to be before killing him constitutes murder?
The hole in the ozone layer is a kind of skywriting. At first it seemed to spell out our continuing complacency before a witch's brew of deadly perils. But perhaps it really tells of a newfound talent to work together to protect the global environment.
There is a reward structure in science that is very interesting: Our highest honors go to those who disprove the findings of the most revered among us. So Einstein is revered not just because he made so many fundamental contributions to science, but because he found an imperfection in the fundamental contribution of Isaac Newton.
The simplest thought, like the concept of the number one, has an elaborate logical underpinning.
Evolutionary psychology is one of four sciences that are bringing human nature back into the picture.
I dreamed of becoming a scientist, in general, and a paleontologist, in particular, ever since the Tyrannosaurus skeleton awed and scared me.
The theory of evolution by cumulative natural selection is the only theory we know of that is in principle capable of explaining the existence of organized complexity.
The idea that you can ask one question and it makes the point - well, that wasn't how psychology was done at the time.
Most Jupiter-sized planets orbit the mother star in a highly elliptical orbit. This means they will often cross the orbit of any Earth-like planet and fling it into outer space, making life impossible. But our Jupiter travels in a near-perfect circular orbit, preventing a collision with any Earth-like planet, making life possible.
I hope I have helped to raise the profile of science and to show that physics is not a mystery but can be understood by ordinary people.
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