Abstract

137 countries. 98% of global GDP. 49 live pilots. Brazil and Russia are launching in 2026. The ECB is finalizing its digital euro rulebook as this goes to press. None of that is the most important number in this space right now. The most important number is 98.5%. That is the share of Nigeria's eNaira wallets that sat unused one year after launch. Full infrastructure. Sovereign backing. Nobody showed up.

Not a technology problem. The eNaira worked. A governance problem. The system could not tell a citizen why they should use it, what it would do with their money, or what would happen if something went wrong. When adoption stalled, the government engineered a cash shortage to force behavior. What followed was not adoption. It was protests.

49 programmes are currently running pilots. Most of them are having the same conversation Nigeria was having - about ledgers, about settlement, about token design. Three questions are not being asked. Why would someone use this instead of what they already have? What happens when the system makes a decision the citizen cannot understand or challenge? And who exactly is this being built for, because in most pilot markets, the unbanked majority is an afterthought, not the design centre.

This paper works through those three gaps using the Decision Integrity Chain™, an eight-layer governance framework, as both diagnostic and specification. Nigeria's eNaira is examined layer by layer. What that produces is not a post-mortem. It is a map of exactly where the next 49 programmes will break if the architecture conversation does not change.

The window for getting this right is not permanent. The evidence for what goes wrong when it closes already exists.

Further work on Decision Engineering™, the Decision Integrity Chain™ and the Fiduciary Gap™ is available at lumathink.com.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

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