Redundant training clusters become unaffordable to build from scratch. Leaseholder factions start renting cold water at the Array instead of competing for it.
Every faction's compute and directed-energy programs had been quietly outrunning the planet's mineral supply for years. In 2053 building a rival training cluster meant paying for it twice, once in hardware and once in a resource fight, and the factions started renting cold water at the Array instead. By the decade's end no single faction controlled the training runs the rest of them depended on.