You: regarding scientism is it accurate to say its mantra is that the only valid knowledge is scientific knowledge
Leo AI: Yes, that is an accurate and widely accepted summary of the core tenet of **scientism**.
At its most basic definition, scientism is the view that the **scientific method** is the only authoritative source of true knowledge about reality. Proponents of this view often argue that:
* **Exclusivity:** Only claims that can be empirically tested, measured, and verified by science constitute genuine knowledge.
* **Dismissal of Other Fields:** Disciplines like philosophy, theology, ethics, and the arts are either reduced to scientific explanations or dismissed as meaningless because they do not use the scientific method.
* **Universality:** Science should eventually explain all aspects of human existence, including morality and consciousness.
However, it is important to note that this definition is often used **critically**. Most scientists and philosophers do not claim to hold this view; rather, they argue that while science is the best tool for understanding the physical world, it cannot answer questions of *value*, *meaning*, or *morality*. In this context, "scientism" is often used as a pejorative term to describe an overreach where science attempts to answer questions it is not equipped to handle.
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You: But what about the historicity of a historical person's existence - if the existence of say, Julius Caesar can only be demonstrated through history and documentation (rather than science), would a person subscribing to scientism be justified in being sceptical about his existence, since there is no scientific evidence for it?
Leo AI: This is a sharp question that exposes a common misunderstanding about what "scientific evidence" actually means in this context.
A person subscribing to **scientism** would **not** be justified in being skeptical about the existence of Julius Caesar, provided they understand how science actually treats historical data.
Here is why the premise of your question contains a slight category error:
**1. History *is* a Science (Historical Science)**
When philosophers and scientists discuss "scientific knowledge," they do not mean *only* controlled laboratory experiments (like mixing chemicals in a beaker). They include **historical sciences** (like geology, cosmology, evolutionary biology, and history itself).
* These fields use the **scientific method** to analyze data, form hypotheses, and test them against evidence.
* The evidence for Julius Caesar (coins, letters, contemporary accounts, archaeological layers) is treated as **empirical data**.
* Historians use **abductive reasoning** (inference to the best explanation): "The hypothesis that Caesar existed explains the convergence of these thousands of independent data points better than the hypothesis that he didn't."
**2. Scientism Requires Evidence, Not Just "Lab Experiments"**
If a scientism proponent said, "We need a lab experiment to prove Caesar existed," they would be misunderstanding the scientific method itself.
* Science accepts **observational evidence** from the past (fossils, starlight from billions of years ago, historical documents) as valid data.
* Therefore, a consistent scientism adherent would say: "The *weight* of the empirical evidence (documents, archaeology) is so high that the scientific conclusion is that Caesar existed."
**3. The "Skeptic" Trap**
If someone *did* say, "I am a scientism proponent, so I reject Caesar because there is no lab experiment," they would actually be displaying **bad science**, not rigorous scientism.
* True scientism demands that *all* claims about reality be backed by the best available empirical evidence.
* Rejecting Caesar would require rejecting the reliability of **all** historical sciences (including evolution and climate change), which would make the person's worldview internally inconsistent.
**Summary**
A genuine adherent of scientism would accept Julius Caesar's existence because **historical documentation and archaeology count as scientific evidence** within the broader framework of empirical inquiry. They would only be skeptical if the evidence were insufficient by scientific standards of verification, which is not the case for figures as well-documented as Caesar.
The confusion usually arises when people equate "science" strictly with "experimental physics/chemistry," whereas in philosophy of science, it encompasses any systematic, evidence-based inquiry into reality.
::search[scientific method in history vs experimental science]{type=web}