Weekly Insights for Thinkers

How do I know what is true and what is just an opinion?

By Michael Alan Prestwood

Author and Natural Philosopher

09 Sep 2024
Published 1 year ago.
Updated 2 months ago.

How do I know what is true and what is just an opinion?

In today’s world of endless information, it’s easy to feel overwhelmed by conflicting claims. So, how do you separate fact from opinion? Understanding different types of reasoning, like inductive and abductive, can help.

Take the statement

“The Earth orbits the Sun.”

This is an objective claim backed by scientific evidence gathered through inductive reasoning—scientists observed patterns over time that led to this conclusion. Inductive reasoning builds general truths based on repeated observations.

But what if you don’t have repeated evidence? That’s when abductive reasoning comes into play. It involves making the best possible guess based on available information. For example, if you hear hoofbeats, you assume it’s a horse, not a zebra, because horses are more common. Abductive reasoning helps us make practical assumptions when we lack certainty.

To evaluate truth, ask yourself: Is this claim supported by solid evidence (inductive reasoning)? Or is it a logical guess based on what’s likely (abductive reasoning)? Understanding these can help you discern what’s fact and what’s opinion.


That Critical Thinking FAQ, 

was first published on TST 1 year ago.

By the way, the flashcard inspired by it is this.

Front: What type of reasoning makes the best guess based on incomplete evidence?
Back: Abductive Reasoning
All this is part of the broader TST project.
Tidbits are the smallest working units of this project—focused facts, stories, or explanations tied directly to evidence and sources.
The goal is not to persuade quickly, but to build a stable framework where ideas can be tested honestly.

The end!

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