Wikipedia:WikiProject Cricket/The Nets/The effect of aging sources

During a diplomatic meeting about the Vietnam War, Henry Kissinger is said to have asked Zhou Enlai what he thought of the French Revolution. The Chinese leader was reported to have replied that it was too early to tell [what the impact or legacy was].

Similarly, sources that were once at the cutting edge of human knowledge may over time, become less reliable or superseded by other thought.

Articles on military, political or other topics sensitive to national security in particular are usually most affected by this. The most obvious reason for the aging of sources is because of new information coming to light, so that new secondary sources (such as textbooks and journals) have more data from which they can formulate their conclusion.