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First Principle Thinking - How Great Minds Think

Elon Musk

"… it's important to reason from first principles rather than by analogy. The normal way we conduct our lives is we reason by analogy. We are doing this because it's like something else that was done, or it is like what other people are doing. But with first principles, you boil things down to the most fundamental truths and then reason up from there."

Elon Musk

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First Principle Thinking - How Great Minds Think

First Principle Thinking - How Great Minds Think

https://www.gurufocus.com/news/634228/first-principle-thinking--how-great-minds-think-

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Key Ideas

First Principle

Is a basic, foundational, self-evident proposition or assumption that cannot be deduced from any other proposition or assumption.

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First Principles Thinking
First Principles Thinking

Is the act of deconstructing something to the fundamental parts that you know are true and building up from there.

Also called reasoning from first principles, it effectively he...

Elon Musk
Elon Musk

“Physics teaches you to reason from first principles rather than by analogy. So I said, okay, let’s look at the first principles. What is a rocket made of? Aerospace-grade aluminum alloys, plus some titanium, copper, and carbon fiber. Then I asked, what is the value of those materials on the commodity market? It turned out that the materials cost of a rocket was around two percent of the typical price.”

One Method, Different Solutions

Different solutions present themselves at different layers of abstraction. Depending on how deep and thorough is your breakdown of the situation, putting them all back together may yield different solutions. 

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First-principles thinking

Breaking down complicated problems into basic elements and then reassemble them from the ground up.

It’s one of the best ways to learn to think for yourself, unlock your creative poten...

A first principle

...is a foundational proposition or assumption that stands alone. We cannot deduce first principles from any other proposition or assumption.

Reasoning by first principles removes the impurity of assumptions and conventions. What remains is the essentials. 

Cutting through the dogma

If we never learn to take something apart, test the assumptions, and reconstruct it, we end up trapped in what other people tell us.

We remain trapped in the way things have always been done. When the environment changes, we just continue as if things were the same.

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Elon Musk

"I tend to approach things from a physics framework. And physics teaches you to reason from first principles ra..."

Elon Musk
The Two Types of Thinking

Comparison thinking: comes up with solutions based on pre-existing ideas. It is the way we normally think but it also limits the solutions to possible permutations of what already exists.

First principles thinking: starts free of preconceptions by studying the fundamentals of something and then working your way to a new thing. This helps you understand complex problems.