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Engineering first principles

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Josh Lehman

Mechanical Engineer

4 min read

October 19, 2024 (1y ago)

Engineering First Principles in Everyday Life

Engineering first principles involve breaking down complex problems into their most fundamental parts and methodically solving each part. This approach, often used in scientific and engineering disciplines to foster innovation, can also be harnessed to improve decision-making and problem-solving in everyday life.

Understanding First Principles Thinking

First principles thinking starts with identifying the fundamental truths of a situation and building from there. Instead of relying on existing assumptions or analogies, this method requires looking at the bare facts to develop solutions that are grounded in reality.

Example: Elon Musk uses first principles thinking to redefine industries, such as when he reimagined the cost structure of rocket production for SpaceX by focusing on raw materials rather than traditional methods.

Here’s how you can apply this powerful methodology to tackle daily challenges:

Breaking Down Problems

First principles thinking encourages you to deconstruct problems into basic elements. This involves:






Real-World Applications

Personal Finance

When managing your finances, applying first principles allows for a thorough understanding free from common misconceptions:




Health and Wellness

Improving health involves understanding core biological needs beyond popular diets or exercise fads:




Creativity Boost

Generate fresh ideas by dissecting established concepts before reconstructing them uniquely:



By applying engineering first principles in everyday situations such as finance management, personal wellness development, and even creative pursuits, you can make more informed and effective decisions.