“All truths are easy to understand once they are discovered; the point is to discover them." – Galileo Galilei
The challenge is what is the basis of the truth. In our software-intensive system of systems domain, there are many claiming some method or solution to a known problem. But the question always seems to be on what principle are they basing these suggestions for improvement?
Without some way to test the suggestion (many times just a conjecture) against known principles, their practices and processes, it's difficult to assess the credibility of the suggestion.