An anonymous reader writes: British astrophysicist Stephen Hawking told ITV's morning show that Donald Trump, the presumptive Republican Party candidate for U.S. president, "is a demagogue who seems to appeal to the lowest common denominator." He said, "Gone are the days we could stand on our own against the world. We need to be part of a larger group of nations, both for our security and our trade." ABC News writes, "Stephen Hawking understands the workings of the universe -- but says he cannot fathom the popularity of Donald Trump. He went on to say that British voters should keep the United Kingdom in the European Union in a June 23 referendum, saying the EU provides essential support for British scientific research as well as its economy and security.