Ever wondered why in newspaper articles about science breakthroughs, and particularly in medical stories, scientists seem to be so… well.… cagey about their results? All those ‘may’s and ‘if’s! Can’t they even tell us what’s true and what’s not?
We’re used to the idea that most of the time, truth is black and white. But when scientists talk about their experiments, they’re using a scale of truth that uses many colours. Find out how that compares to what we usually think of as truth: