From Brian Horton, West Launceston, Tasmania, Australia
I appreciated Tom Gauld’s cartoon depicting a physics professor stressed out by the bizarre theories in parts of the field that no one actually understands (12 March, p 55).
I have noticed that some of your physics articles present ideas that aren’t currently testable, and in many cases may never be tested. Since a requirement of scientific study is that we can test our predictions, I often wonder if physics is a real science.
