The whole [scientific] process resembles biological evolution. A problem is like an ecological niche, and a theory is like a gene or a species which is being tested for viability in that niche.
— David Deutsch The Fabric of Reality: The Science of Parallel Universes--and Its Implications
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Other Quotes by "David Deutsch"

Our best theories are not only truer than common sense, they make more sense than common sense.
Tags: common-sense, only, more, best
I don't think it would be a good idea for scientists to have more political power. Scientists as a group are more inclined to try to derive an ought from an is, than the population at large.
Tags: think, political, power, good
It is possible to build a virtual-reality generator whose repertoire includes every possible environment.
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Time travel may be achieved one day, or it may not. But if it is, it should not require any fundamental change in world-view, at least for those who broadly share the world view I am presenting in this book.
Tags: i-am, world, time, change
Where we have good, testable explanations, they then have to be tested, and we drop the ones that fail the tests.
Tags: tests, fail, where, good
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