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David Deutsch on the infinite reach of knowledge

The TED Interview

CHAPTER

I Love Optimism

Most people think of aerism as a feeling of hope about the future. Optimism, as i define it, has to do with knowledge. It's an explanation of failure. If you explain failure as being inevitable, or due to some malevolent force, insuperable malevolent force,. or just the way things are, then that's a recipe for stasis - which is ta recipe for failure and eventually death. Therefore, all failure has to be explained in the form the reason we didn't succeed is that we didn't know how to. And the knowledge of how to is, in principle, attainable. We don't have it now, but we could have it in t

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