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astronomy

James Fetzer

James Fetzer is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand James Fetzer rather than just read about it. In short: James Henry Fetzer (born December 6, 1940) is an American professor emeritus of the philosophy of science at the University of Minnesota Duluth, known for promoting conspiracy theories and Holocaust denial. Fetzer has worked on assessing and clarifying the forms and foundations of scientific explanation, probability in science, philosophy of mind, and philosophy of cognitive science, especially artificial intelligen…

James Fetzer — main illustration
James Fetzer — illustration

Key takeaways

  • James Fetzer belongs to astronomy; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect James Fetzer to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of James Fetzer from memory before moving on to harder problems.

Reference excerpt

James Henry Fetzer (born December 6, 1940) is an American professor emeritus of the philosophy of science at the University of Minnesota Duluth, known for promoting conspiracy theories and Holocaust denial. Fetzer has worked on assessing and clarifying the forms and foundations of scientific explanation, probability in science, philosophy of mind, and philosophy of cognitive science, especially artificial intelligence and computer science. Fetzer began to promote John F. Kennedy assassination conspiracy theories in the early 1990s. He later promoted 9/11 conspiracy theories, Holocaust denial, conspiracy theories regarding the 2002 death of Senator Paul Wellstone, and Sandy Hook Elementary School shooting conspiracy theories. He cofounded Scholars for 9/11 Truth in 2005, and claims that elements in the United States government, United States Intelligence Community, and Israeli Mossad were responsible for the September 11 attacks. Fetzer asserts that no commercial planes or hijackers were involved at any of the attack locations, that Flight 93 did not exist, and that guided missiles and/or explosives were instead used to destroy the buildings and create the appearance of a plane crash in Shanksville, Pennsylvania. Fetzer's allegations and speculations have drawn strong criticism as a source of disinformation and false conspiracy theories. In October 2019, a Wisconsin court ordered Fetzer to pay the father of a Sandy Hook victim $450,000 in a defamation case. Fetzer's views have been featured by Iran's PressTV, Fars, and Tasnim news agencies and the pro-Russian website Veterans Today, which have been described as sources of state propaganda. In an interview Fetzer supported Iranian and Russian media as "Press TV, along with RT and Sputnik News, have become the gold standard for reporting on international events and developments." He stated his opposition to the US and Israel as they "have become the greatest threats to freedom and democracy ever known, not only in the Middle East but throughout the world." He held up Iran as a "beacon of light in comparison to the United States." In another interview, Fetzer stated "Russia and Iran are now providing leadership for the world community. May they prosper and endure!"

Early life Fetzer was born in Pasadena, California, on December 6, 1940, to a father who worked as an accountant in a welfare office in Los Angeles County, and grew up in a neighboring city, Altadena. After his parents' divorce, Fetzer moved to La Habra Heights, California, with his brother, mother, and stepfather. His mother took her own life when he was 11, and he went to live with his father and stepmother. Following Fetzer's graduation from South Pasadena High School, he studied philosophy at Princeton University and graduated magna cum laude in 1962 where his undergraduate thesis, under the supervision of Carl G. Hempel, won The Dickinson Prize. He then joined the United States Marine Corps, and was second lieutenant in an artillery unit. In the early 1960s, he was stationed at Okinawa, Japan. During military service in the 1960s, Fetzer married, and divorced four years later, after having a son. He remarried in the 1970s. In 1966, soon after promotion to captain, he resigned to enter graduate school. Having attained a master's degree from Indiana University, he studied at Columbia University for a year, then returned to Indiana University and in 1970 gained a PhD in history of science and philosophy of science.

Career He became an assistant professor at the University of Kentucky in 1970, and received the University of Kentucky Student Government's first Distinguished Teaching Award in 1973. He was denied tenure at Kentucky in 1977, and spent the next ten years in visiting positions at the University of Virginia, University of Cincinnati, University of North Carolina at Chapel Hill, and University of South Florida. After ten years without a tenure-track position, in 1987 he was hired as a full professor at the University of Minnesota Duluth. In 1996, Fetzer received a Distinguished McKnight University Professorship from the University of Minnesota, a title that recipients retain until they retire from the University. After Fetzer retired in 2006 he became professor emeritus. In the late 1970s, Fetzer received a National Science Foundation fellowship, and contributed a chapter to a book on Hans Reichenbach. In 1990, Fetzer received the Medal of the University of Helsinki. He assisted theorists in computer science, and joined the debate over proper types of inference in computing. In the late 1990s, Fetzer was called to organize a symposium on philosophy of mind, and authored textbooks on cognitive science and artificial intelligence. He is an expert on philosopher Carl G. Hempel. Fetzer published over 100 articles and 20 books on philosophy of science and philosophy of cognitive science, especially of artificial intelligence and computer science. In 2002, Fetzer edited Consciousness Evolving, a collection of studies on the past, the present, and the future of consciousness. He founded the international journal Minds and Machines, which he edited for 11 years, and founded the academic library Studies in Cognitive Systems, of which he was series editor. He founded the Society for Machines & Mentality. Near and after retirement, Fetzer remained a contributor to as well as cited or republished in philosophy of science and cognitive science volumes and encyclopedias.

… excerpt ends here. Continue reading the full article.

Illustrations

James Fetzer illustration

Worked examples

Example 1 — a first encounter with James Fetzer

Start with the simplest possible case. Write down what James Fetzer claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to James Fetzer before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about James Fetzer ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of James Fetzer

In research
James Fetzer appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses James Fetzer in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
James Fetzer is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1940 births, 9/11 conspiracy theorists, Academics from Pasadena, California, so understanding it makes those chapters shorter.
In everyday life
Look for James Fetzer outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study James Fetzer in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what James Fetzer means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain James Fetzer out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is James Fetzer in simple terms?

James Henry Fetzer (born December 6, 1940) is an American professor emeritus of the philosophy of science at the University of Minnesota Duluth, known for promoting conspiracy theories and Holocaust denial. Fetzer has worked on assessing and clarifying the forms and foundations of scientific explan…

Why does James Fetzer matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study James Fetzer?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on James Fetzer.

Tags

  • 1940 births
  • 9/11 conspiracy theorists
  • Academics from Pasadena, California
  • American Holocaust deniers
  • American conspiracy theorists
  • Cyberbullying
  • Indiana University Bloomington alumni
  • John F. Kennedy conspiracy theorists
  • Living people
  • Military personnel from Pasadena, California
  • Moon landing conspiracy theorists
  • People from Altadena, California

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