It doesn't sound like he believes it one way or another. He's just saying it's time to hedge bets by pushing the next generation to look for new frameworks. T

It doesn't sound like he believes it one way or another. He's just saying it's time to hedge bets by pushing the next generation to look for new frameworks. That is a long term endeavor, and he's just admitting that he's too far into his career to accomplish much in that direction. At this point in his career with a Nobel under his belt, he's probably doing more mentoring type duties than purely research.