But The Scientific Importance Of A Change

If Observed Facts Of Undoubted Accuracy Will Not Fit Any Of The Alternatives It Leaves Open, The System Itself Is In Need Of Reconstruction.

A Scientifically Unimportant Discovery Is One Which, However True And However Interesting For Other Reasons, Has No Consequences For A System Of Theory With Which Scientists In That Field Are Concerned.

It Is Probably Safe To Say That All The Changes Of Factual Knowledge Which Have Led To The Relativity Theory, Resulting In A Very Great Theoretical Development, Are Completely Trivial From Any Point Of View Except Their Relevance To The Structure Of A Theoretical System.

But The Fact A Person Denies That He Is Theorising Is No Reason For Taking Him At His Word And Failing To Investigate What Implicit Theory Is Involved In His Statements.

It Is That Of Increasing Knowledge Of Empirical Fact, Intimately Combined With Changing Interpretations Of This Body Of Fact - Hence Changing General Statements About It - And, Not Least, A Changing A Structure Of The Theoretical System.