Hawking spent his entire professional life in the UK. Wiles bounced around between Princeton, Paris, and Oxford, but he was educated up through his PhD in the U

Hawking spent his entire professional life in the UK. Wiles bounced around between Princeton, Paris, and Oxford, but he was educated up through his PhD in the UK. From my perspective as an American in number theory, it seems there is no shortage of strong people coming from UK, Australia, Germany, France, India, and China, but there are many who come to the US and stay here. Anecdotally, it seems rare for a very strong person in the US to move elsewhere, unless it is back to their home country.