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. Edward Witten Read Quote
If you are a researcher, you are trying to figure out what the question is as well as what the answer is. Edward Witten Read Quote
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. Edward Witten Read Quote
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. Edward Witten Read Quote
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. Edward Witten Read Quote
Quantum mechanics brought an unexpected fuzziness into physics because of quantum uncertainty, the Heisenberg uncertainty principle. Edward Witten Read Quote
On the other hand, we don’t understand the theory too completely, and because of this fuzziness of spacetime, the very concept of spacetime and spacetime dimensions isn’t precisely defined. Edward Witten Read Quote