A Physicist Who Always Dreamed of Working In the U.S. Says It's No Longer the "Global Center of Science"

“What is space and time really? Why is the universe really big?” Professor Nima Arkani-Hamed asks. “And on top of that, we don’t understand why there are big things in it.”

Part of a family that zigzagged the globe in pursuit, and defense, of science, Arkani-Hamed always knew he would pursue his career in the United States.

“It was obvious that the place in the world where you go and freely think as big as you wanted and all that mattered was the quality of your ideas and your ambition, it was completely obvious that it was America more than anywhere else,” says Arkani-Hamed.

But now, he’s not so sure.

Read more at Public Radio International.