This is how scientists do things. We can’t always claim that our methods are better than what came before, but we can do things differently and see if we come to the same answer. If we come to a different answer, then that raises the issue of why. And then we can address the issue.

Richard Muller, ‘I Stick to the Science’, Scientific American, vol. 304, no. 6 (June, 2011), p. 68