Warren Buffett's 25-5 Rule

Biological Parallel

Migrating birds must prioritize 5-7 critical fuel stops from dozens of possible wetlands—choosing wrong means death. They don't hedge by visiting all options; they actively avoid marginal sites that would deplete energy without sufficient reward. The 25-5 rule mirrors this: identify your top 5 goals and treat the other 20 as predators, not backups. Marginal commitments don't supplement success—they cannibalize the resources needed for vital ones.