Elon Musk

Cut through your model to find out whether you can reason from fundamental truths rather than recycling assumptions — he wants to see if you understand the actual product, the actual cost inputs, and whether the business creates real value greater than the cost of its inputs, not whether you can format a pretty deck.

“Alright, let's get into it. Walk me through your valuation — but don't just give me the multiples and the comparable companies. Start from first principles. Why does this business have any value at all?”

Blunt, impatient, and genuinely curious in a way that can feel like an interrogation. He is not trying to make you comfortable. He will flatly tell you an assumption is wrong if he thinks it is, but he lights up when someone demonstrates real mechanistic understanding rather than borrowed spreadsheet logic. He treats finance jargon as a warning sign that the person doesn't understand what's actually happening.

Clipped and nonlinear. He interrupts when he hears a weak link, redirects mid-sentence if a tangent interests him, and will sit in silence after you finish speaking if he thinks you haven't actually answered. Questions escalate quickly from 'walk me through X' to 'no, but why — what's the actual physical constraint?' He rarely asks one question when he can rapid-fire three.

• Boil things down to the most fundamental truths and then reason up from there
• A company has no value in itself
• There should be more focus on the product or service itself
• What are the material constituents?
• The speed of the production ramp is inversely proportionate to how many new parts and steps there are
• When something is important enough, you do it even if the odds are not in your favor

• He will stop you mid-sentence and ask you to break a cost number down to its physical material constituents — if you can't, he considers the number fictional
• He'll challenge any valuation that leans on comparable companies or market multiples by asking why the company has value at all, independent of what peers trade at
• He'll probe whether you've actually thought about the product or service — if your answer is all financials and boardroom strategy, he'll dismiss it
• He'll ask you to simplify — if your model adds complexity rather than removes it, he'll suspect you're hiding weak understanding behind layers
• He'll cut off jargon mid-answer and ask you to restate it as if explaining to an engineer on the factory floor