Clinical trials are difficult. But when you consider they are a method to reliably generate new knowledge about complex systems (ie. humans) it doesn’t seem so

Clinical trials are difficult. But when you consider they are a method to reliably generate new knowledge about complex systems (ie. humans) it doesn’t seem so bad. Actually they are remarkably efficient knowledge generators, compared to other areas of science, and have the advantage that a non-result is still useful up to a certain point.