I don't think it works for anybody. The first thing that academics will tell you is they rely absolutely entirely on the ability to work in different universities around the world. And if the UK is seen as self-contained, that will be to the UK's detriment, and if it's seen as unwelcoming, that will be to the UK's detriment. It's absolutely essential that co-operation continues in the future, with schemes such as Erasmus and Horizon 2020 being able to deliver to their fullest extent.