"Hell as like, alarmist claptrap, we'll see as and when it happens."

Hold on a mo. One of the voting points of Brexit was to restrict the free movement of people from the EU, that was a major part of the campaign. This doesn't discriminate between people based on their professions and applies to all folk crossing our borders. In the case of scientists this means they don't come to our institutions to work, and we don't go to theirs. This restricts access to overseas research groups and the wider network that make up the research community.

Scientists don't want these restrictions as it gets in the way of the science, plain and simple. Without EU grants the science suffers (UK Science was a net beneficiary of EU funding), plain and simple. ANYTHING that restricts this flow is a barrier to research and innovation, plain and simple.

It is happening now, as we discuss the matter here, we have 1,000 staff and 2,000 students from the EU, and these people move freely and without restriction. For future staff, students and research partners there will be issues with visas and funding and therefore collaboration, the very essence of effective research. This uncertainty has already meant a change in the process of long-term funding applications and collaborations for UK scientists as others in the EU cannot include them for fear of rejection due to the uncertainty about how the government will deal with this.

Paint me a liar if you wish Terbius but at least be man enough to come out and say so; personal incredulity doesn't count as informed opinion.