"Einstein solved problems that people weren't even asking or appreciating were problems," said Dr. Edward Witten of the Institute for Advanced Study in Princeton, N.J., Einstein's stomping grounds for the last 32 years of his life. "It could be there are big questions nobody is asking, but there are so many more people in physics it's less likely big questions could go unasked."
But you never know.
"One thing about Einstein is he was a surprise," said Dr. Witten, chuckling.
"Who am I to say that somebody couldn't come along with a whole completely new way of thinking?"