

Rationally Speaking #83 - Samuel Arbesman On The Half-Life of Facts
Mar 25, 2013
In this discussion, Samuel Arbesman, an applied mathematician and author of "The Half-Life of Facts," explains how our scientific knowledge evolves and becomes outdated over time. He reveals intriguing insights into the half-life of various facts, highlighting that some truths may last decades while others fade quickly. The conversation dives into the allure of entertaining misinformation that complicates our understanding of science. They also explore the challenges in measuring real scientific contributions, emphasizing the necessity for continuous learning in an ever-changing knowledge landscape.
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The Spinach Saga
- The story of spinach's nutritional value being overblown due to a typo is itself an error.
- The actual error was a mismeasurement, not a typo, and it was corrected quickly, but the false story persisted for decades.
Laplace's Apocryphal Quote
- Massimo Pigliucci shares a story about using an apocryphal quote by Laplace, only to discover its authenticity is debated.
- He now uses the quote while acknowledging the uncertainty surrounding its origin.
Verifying Kelvin's Quote
- Samuel Arbesman needed to verify a Lord Kelvin quote about measurement.
- Due to multiple versions online, he had someone read it directly from a building at the University of Chicago.