Hacker News new | ask | show | jobs
by jfarmer 4564 days ago
Well, we can and have made the idea of a computable number precise: http://en.wikipedia.org/wiki/Computable_number

It's not clear whether the universe is computable, however, in the sense that we only find computable numbers in nature. This is kind of an epistemological catch-22, though. How would we know whether this were the case or not?