>[!abstract]
>Ultracrepidarianism is the tendency for people to confidently make authoritative pronouncements in matters above or outside one's level of knowledge. Often, those pronouncements fall entirely outside the ultracrepidarian's realm of legitimate expertise.
>
>Another expression of ultracrepidarianism, as instantiated by those with an actual expertise in something, is the tendency to start treating all other fields as somehow being sub-categories to your own field: epistemologists saying "it's all epistemology in the end", mathematicians saying "it's all mathematics in the end", physicists saying "it's all physics in the end", psychologists saying "it's all psychology in the end" (et cetera) and thus proceeding to apply their methods to a completely different field which they hardly realize they don't understand.
>
>The lesson is that being an expert means being an expert at something — and "something" is specific, not universal. In other words, various forms of expertise are not interchangeable. ("Ultracrepidarianism", 2025).
## References
- Ultracrepidarianism. (2025, January 1). In *RationalWiki*. https://rationalwiki.org/w/index.php?title=Ultracrepidarianism&oldid=2681901
## Related
- [[Igon value problem]]
- [[Specialization]]