First Principles
How do you cut through bullshit to validate the truth, and apply force where it creates the greatest step improvement?
The Laws of Physics are the ultimate constraint, everything else is a recommendation. First-principles reasoning means stripping back to what the laws of physics actually permit, then asking why you're not doing that. Everything between current reality and physical limits is explainable by institutional habit, misaligned incentives, or unquestioned assumption.
Strip away received wisdom and reason from what you can
validate consistently
to be true.
The Tight Five
Question Effectively, Remove Regularly, Optimize Effectiveness, Accelerate Cycles, Automate Flow.
Question every requirement
Every requirement should come with a name attached — not a department, a person. Requirements from smart people are the most dangerous because they're harder to question. Ask: what would break if we removed this? If the answer is "nothing certain," remove it.
Delete the part or process
Your target is to delete 10% more than feels comfortable. If you're not adding things back, you deleted too little. The asymmetry matters: adding back a wrongly deleted part costs one sprint; carrying a wrongly kept part costs forever.
Simplify or optimise
Only after deletion. Optimising something that shouldn't exist is the most common and most expensive engineering mistake. Simplification that happens before deletion just makes the wrong thing faster.
Accelerate cycle time
Once the system is stripped and simplified, find every bottleneck and compress it. If you're not occasionally embarrassed by how fast you moved, you're moving too slow. Speed reveals the next constraint.
Automate flow
Last, never first. Automation of a flawed process locks in the flaw at scale. Every step above must precede this one.
Context Management
Needless context switching/overload is the enemy of effective thinking. To be maximally effective, plan ahead to match the task with mindset based on the context of complexity, environment and available compute power vs systemized know-how.
Reasoning by Analogy
- — "This is how it's done"
- — Incremental improvement
- — Constrained by precedent
- — Fast but local
Reasoning by First Principles
- — "What's actually required?"
- — Step-change innovation
- — Constrained only by physics
- — Slow but global
Operational Memory: Most thinking is analogy — copying what others did. First principles creates what didn't exist. Lazy, tired, stressed, and over-loaded minds take route 1.
Applications
Process Improvement: How to use first principles to prevent lazy thinking and dogma to re-examine fulfillment of potential.
Domains
Solutions Are Temporary
Solutions are temporary, questions are timeless.
SpaceX · Musk's question
"What are rockets made of?"
Answer
Aluminum, titanium, copper, carbon fiber.
Insight
Raw materials = 2% of price. Built in-house.
Cut costs 90%.
Fall Into The-Gap
In the Tight Five, Principles is the Filter — the invisible binding that makes four cells into one coherent loop. It is not a single concept but three nested layers:
Layer 1 — Method
First Principles
Question
What is actually true? (this page)
What it grounds
The reasoning method — strip assumptions, decompose to fundamentals, rebuild.
Layer 2 — Compass
Values
Question
What matters and why?
What it grounds
Utility → Desire → Belief — how value transforms and distributes.
Layer 3 — Proof
Virtues
Question
How do you show up?
What it grounds
Character under pressure — embodiment, not just knowledge.
First Principles is the entry point because you cannot know what to value without first knowing what is true. Values are the compass. Virtues are the proof that the compass is real — not just stated. The Filter is invisible in the logo (white space) for the same reason character is invisible until tested.
The three layers apply at every scale. A business's Principles cell = the core logic that transforms input to output, the values that govern trade-offs, the culture that embodies both. A country's Principles cell = the truths that bind citizens, the legal system that encodes values, the norms that hold when rules can't.
Seek The Truth
If a life is eighteen holes on the archipelago, each hole, played honestly, deposits a truth. The principle is the stamp on the scorecard. The harvest pattern is the reason the round was worth playing.
The principles ledger is not a library you fill once. It is a living book, refined hole by hole, edited by the rounds that broke you and the ones that compounded. The first-principles method strips assumptions; the round deposits the truth that survived the strip. The two practices are the same loop running on different timescales.
Context
- Navigation System — Value, Belief, Control as the three loops
- Knowledge Stack — Primitives → Protocols → Standards → Platform
- The Tight Five — Principles is the first of five tightly-bound elements
- Mantra — When systems fail, principles become the trigger phrase
- Inversion Thinking — Flip the problem
- Scoreboard — Principles tell you where to point; the scoreboard tells you where you are
- Naming Standards — Nomenclature and taxonomy — the first principle of first principles
- Process Optimisation — Musk's 5-step algorithm applied end-to-end
Questions
The open loop
What received wisdom are you treating as first principles without having decomposed it?
- — Which domain's first principles do you know intellectually but fail to apply under pressure?
- — Where would stripping to fundamentals reveal that the problem you're solving shouldn't exist?
- — What assumption would invalidate everything you've built if it turned out to be wrong?