The Masayoshi Son
Framework
300-Year Vision & Contrarian Capital
Masayoshi Son built capital over decades by applying specific, repeatable mental models to uncertainty. Masayoshi Son's investing thinking, captured in this framework as mental models, decision heuristics, and the signature questions they would ask.
The 300-year vision & contrarian capital framework distils Masayoshi Son's documented approach into a .md skill file you can load into Claude, ChatGPT, or any LLM in seconds.
Where most AI personas generate generic output, this framework is grounded in real documented work: interviews, writing, published frameworks, and the specific decisions Masayoshi Son made when it mattered. Use it for decision-making, writing, strategy, or any situation where you want your AI to think with Masayoshi Son's distinctive patterns rather than a default model voice.
A glimpse of Masayoshi Son's thinking.
The singularity is inevitable—artificial super-intelligence will emerge within 30 years, creating the greatest wealth transfer in human history. Those who position capital ahead of this inflection point, when others see only science fiction, will capture exponential returns that compound across centuries.
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Five specific models, each named and explained with concrete examples, unlocked with purchase.
"In 2050, will this technology be as essential as electricity is today?"
4 more questions in Masayoshi Son's voice are unlocked with purchase.
Full list of anti-patterns unlocked with purchase.
The full framework adds: detailed explanations of all five mental models with real-world examples, the decision heuristics Masayoshi Son actually used, remaining signature questions, the complete list of anti-patterns, a copy-paste activation prompt, and a worked example.
Unlocked the moment you purchase. ~2,000 words total. Delivered as a Claude Skill and plain .md within 60 seconds of checkout.
- ✦Core philosophy: 2–3 sentences grounded in Masayoshi Son's documented worldview
- ✦Five signature mental models: each named, with concrete examples from their work
- ✦Decision heuristics: the concrete rules they actually used
- ✦Signature questions: five questions that sound like Masayoshi Son, not a generic MBA
- ✦What they would NOT do: the anti-patterns this framework rejects
- ✦Copy-paste activation prompt: drop straight into Claude or ChatGPT
- ✦Worked example: the framework applied to a realistic scenario
- →masayoshi-son.zip: a native Claude Skill. Upload to Settings → Skills in Claude, or unzip to
~/.claude/skills/ - →masayoshi-son-framework.md: plain markdown. Works in ChatGPT Custom GPTs, Gemini, Claude Projects, agent system prompts, anywhere
What it does with a real question.
A founder is deciding whether to take a large but difficult client.
Take the client, but only if you can name what it makes you into. A large, difficult client is not a revenue decision. It is a decision about which company you become over the next decade, and most founders evaluate it as if it were a quarterly cash event.
Run the time machine test. Imagine it is 2050 and someone is writing the history of your company. Does this client appear as the account that forced you to build the infrastructure, the process, and the reputation that made you the default in your category? Or does it appear as the account that ate eighteen months, burned out your best people, and bent your roadmap around one customer's quirks? The first story is worth enormous pain. The second is a slow death with good invoices.
The difficulty itself is the signal worth reading. If the hard parts of serving this client are things every future customer in your market will eventually demand, such as scale, compliance, reliability, or integration depth, then they are paying you to build your moat. Take it. If the hard parts are bespoke demands that only this client wants, you are building their company, not yours. Pass.
Your next move this week: write down the three hardest things this client will ask of you, then mark each one as "future market standard" or "custom to them." If at least two are standard, say yes, but negotiate scope so the custom work is priced separately and the standard work lands on your core product.
The full framework carries five models, decision heuristics, signature questions and a worked example.
Written by claude-sonnet-5-5 with this framework loaded, 2026-10-11. Checked automatically for length and for copied framework text.
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Works as a Claude Skill (.zip) and as a plain .md for ChatGPT, Gemini & every LLM
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Inspired by the documented thinking of Masayoshi Son. A mental-model toolkit, not a literal representation. Delivered as a .md file compatible with Claude, ChatGPT, Gemini, and any LLM.