String theory vitality

Not Even Wrong blog:

Gross mentioned the recent New Scientist article quoting him as admitting string theory was in trouble, saying that the article misrepresented what he said. At the recent Solvay conference he had said something like "In string theory we don't know what we are talking about", and the New Scientist reporter interpreted that as meaning there was trouble, an interpretation Gross disagreed with. ... Gross went on to claim that really string theory is a vital subject ...

Not many scientists brag about not knowing anything.