---
title: "Meaning & Key Takeaway of: [Theory is] an explanation that has been…"
description: "\"[Theory is] an explanation that has been confirmed to such a degree, by observation and experiment, that knowledgeable experts accept it as fact. That'..."
image: "https://sms4smile.com/quotes/i/e66/david-quammen-9256_accepting_theory-is-an-explanation-that-has-been-c_2604502.jpg"
---

#  \[Theory is\] an explanation that has been confirmed to such…

![“&#91;Theory is&#93; an explanation that has been confirmed to such a degree, by observation and experiment, that knowledgeable experts accept it as fact. That's what scientists mean when they talk about a theory: not a dreamy and unreliable speculation, but an explanatory statement that fits the evidence…” quote by David Quammen](https://sms4smile.com/quotes/i/e66/david-quammen-9256_accepting_theory-is-an-explanation-that-has-been-c_2604502.jpg)   [Download](https://sms4smile.com/quotes/i/e66/david-quammen-9256_accepting_theory-is-an-explanation-that-has-been-c_2604502.jpg) [Open image](https://sms4smile.com/quotes/i/e66/david-quammen-9256_accepting_theory-is-an-explanation-that-has-been-c_2604502.jpg)

> “\[Theory is\] an explanation that has been confirmed to such a degree, by observation and experiment, that knowledgeable experts accept it as fact. That's what scientists mean when they talk about a theory: not a dreamy and unreliable speculation, but an explanatory statement that fits the evidence. They embrace such an explanation confidently but provisionally - taking it as their best available view of reality, at least unil some severely conflicting data or some better explanation might come along.”

[David Quammen](https://sms4smile.com/quotes/author/david-quammen/)

## About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

A scientific theory is a well‑supported explanation accepted by experts, yet remains provisional pending new evidence.

**In simple terms:** Theories explain data but can change with new facts.

Key Takeaway

Treat theories as strong but revisable explanations.

Themes

science theory epistemology

Mood

analytical thoughtful

Type

educational philosophical

When to use this quote

- research proposals
- policy decisions
- education curricula

Key Concepts

falsifiability evidence hierarchy

Questions to Reflect On

- What evidence would change a current theory?
- How do you balance confidence and humility?

A Different Perspective

Theories can be overturned by paradigm shifts.

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