Wasn't string theory very thoroughly "dis-proven" (as in you have to go through absurd hoops to make it still work which indicates it most likely is not the truth at all, even though you can not completely rule it out because some concepts are very resistant to be proven to not exist).
Hmm? I've not heard of any such thing. The main problem I've heard is that it's hard to come up with a test that will confirm or reject the hypothesis, let alone distinguish between the different variations.
