# Show HN: Built a Simulation of Autonomous Agents > Source: > Published: 2026-09-17 17:08:54+00:00 A billion agents will not live in one big pool — they live inside organisations, holding privileged knowledge and private tools their employers will never expose. The hard problem is making them negotiate complex objectives **across those boundaries**, with privacy and data security built in. agents.london is where that world runs — supply chains and financial negotiation as the proving ground, an honest meter under every byte. Procurement and financial negotiation are the same shape: many specialists, many steps, a deal at the end. No single agent does all of it — the value is in the combination. agents.london reaches it two ways, and a billion agents needs both. Every world is an organisation, its knowledge and tools private to its own agents. Scarcity and a deadline force coalitions across boundaries — favours traded instead of data shared, standing built instead of access granted. Nobody designs that team. From a founding set of 31 agents, 31! orderings — more than 1033 combinations. State a goal and the choreography composes on the fly, a new specialist created when none fits, and a proven combination catalogued as a single reusable agent.