This concluding chapter offers some final reflections on the nature of knowledge about ethnicity in Kenya. I argue that if the nature of this knowledge is purposefully vague and makes ethnic categories polyvalent, then the best way to protect against problematic uses of ethnic knowledge is vigilance. This is far less satisfying and reassuring than law or rights as a framework for governing the risks of diversity, but it is far more appropriate, and I briefly consider what this might look like. Finally, I look forward to the digitisation of Kenya’s population register and aspirations to establish a population knowledge architecture so sophisticated that it could render numerous registers interoperable and ultimately replace even the census. I reflect on the nature of ethnic classification in such an architecture and argue that it would lose all the qualities that have made it amenable to solidaristic and pluralistic purposes thus far, while amplifying all its dangers.