First Principles
Strip a problem down to what you know is true, then rebuild your reasoning from there instead of copying what everyone else does.
Most decisions are made by analogy: do what worked before, or what everyone else is doing. Analogy is fast — but it silently imports every assumption of the thing you copied.
First-principles thinking works the other way. It breaks a problem into what is actually, verifiably true — the physics, the math, the hard constraints — and treats everything above that as a choice that can be questioned.
That is how engineers price a battery from raw materials instead of catalogs, and how a founder finds the cost everyone else assumed was fixed.
The cost is effort; reasoning from scratch is slow. The payoff is originality — conclusions no one else reaches, because you are not anchored to the crowd.
Apply first principles
State the problem plainly
Write the goal in one sentence, with no jargon and no proposed solution baked in.
List the bedrock facts
Separate what is physically or logically true from what is merely convention or assumption.
- Is this a law, or a habit?
- Who benefits from this assumption?
Rebuild upward
Construct a fresh solution using only the bedrock facts. Compare it to the conventional answer — the gap between them is your edge.
When you are stuck, the assumption you never questioned is usually the one holding you back.