Quantum mechanics brought an unexpected fuzziness into physics because of quantum uncertainty, the Heisenberg uncertainty principle.
Tags: physics, uncertainty, unexpected

Other Quotes by "Edward Witten"

I just think too many nice things have happened in string theory for it to be all wrong. Humans do not understand it very well, but I just don't believe there is a big cosmic conspiracy that created this incredible thing that has nothing to do with the real world.
Tags: understand, think, believe, world
So when you ask me how string theory might be tested, I can tell you what's likely to happen at accelerators or some parts of the theory that are likely to be tested.
Tags: some, i-can, you, me
If you are a researcher, you are trying to figure out what the question is as well as what the answer is.
Tags: well, question, trying, you
One very important aspect of string theory is definitely testable. That was the prediction of supersymmetry, which emerged from string theory in the early '70s.
Tags: which, early, theory, important
I have a tendency, more than most other physicists, to try to figure out everything all at once, before I publish. And even to try to figure out everything in my head, without pencil and paper.
Tags: pencil, everything, more, try
View More by "Edward Witten"