Block is rethinking org design from first principles. Rather than treating AI as a productivity tool, they're using it to replace the core function of hierarchy itself: routing information and coordinating decisions.
1. The History and Limits of Org Hierarchy
Organizations have always struggled with the same problem: how do you coordinate many people across distance when communication is slow?
1.1. Roman Army's Solution
The Roman army solved it with hierarchy — contubernium (8 soldiers), century (80), cohort (480), legion (5,000). Each layer had a commander who collected information upward and relayed decisions downward. The "span of control" of 3–8 people per leader became the organizing constraint.
1.2. Prussia's Staff System
After Napoleon's defeats, Prussia created the General Staff — a corps of trained officers dedicated to planning, intelligence, and coordination, not combat. This is the origin of the line/staff distinction and "middle management" in modern companies.
1.3. From Military to Business
West Point graduates brought military hierarchy to the railroads in the 1840s. Daniel McCallum created the world's first org chart in the 1850s to manage 500+ miles of track and thousands of employees.
1.4. Scientific Management
Frederick Taylor optimized within hierarchy — breaking work into specialized tasks, measuring performance, and managing by data rather than intuition. This created the functional pyramid.
1.5. Tech Companies' Experiments
Spotify's squads, Zappos's Holacracy, Valve's flat structure — all tried to break free of hierarchy. All failed at scale. Without a better mechanism for routing information, organizations regress to hierarchical coordination as they grow.
2. Block's Vision: Company as Intelligence
2.1. The Core Hypothesis
Most companies use AI for productivity. Block is asking: can AI replace the coordination function of hierarchy itself?
"We're showing what Block looks like when we fundamentally rethink organizational design, ultimately using AI to compound speed as a competitive advantage."
2.2. Two World Models
The system requires two inputs:
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Company World Model — Block is remote-first, so all decisions, code, designs, plans, and blockers exist in machine-readable form. AI can continuously build and maintain a live picture of what's being built, what's blocked, and how resources are allocated. This replaces what managers did.
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Customer World Model — Built from transaction data across Cash App and Square. Every transaction is a true signal about someone's financial life. The model gets richer as more transactions flow through it — a compounding advantage.
2.3. Four Pillars of the New Organization
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Capabilities — Payments, lending, card issuing, banking, BNPL, payroll. Building blocks, not products. No UI, but reliability and compliance targets.
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World Models — Company and customer models described above.
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Intelligence Layer — Composes capabilities for specific customers at specific moments, proactively.
"A restaurant's cash flow is tightening as it enters a seasonal lull. The model knows this in advance. The intelligence layer composes a short-term loan from the lending capability, structures repayment through the payments capability, and surfaces this to the merchant before they go looking."
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Interfaces — Square, Cash App, Afterpay, etc. are delivery channels for the intelligence layer's composed solutions.
2.4. New Roles
- Individual Contributors — Deep experts who build capabilities and models. The world model provides context, so they can make decisions without waiting for management.
- Directly Responsible Individuals (DRIs) — Own a cross-functional problem or opportunity for a defined period (e.g., 90 days), with authority to pull resources from any team.
- Player-coaches — Still build things themselves, while also investing in the growth of people around them. Replace information-routing managers.
No permanent middle management layer.
3. The Key Question
"What does your company deeply understand that is genuinely hard to understand, and is that understanding compounding daily?"
If the answer is nothing, AI is just cost optimization. If the answer is something deep, AI reveals what the company truly is.
For Block, the answer is the economic graph — the financial behavior of millions of merchants and consumers, observed in real time across both sides of every transaction.