I guess it does sort of work as a "grammatical infinity" idea https://medium.com/luminasticity/cardinality-and-growth-rate...

Like an imperative, because copilot can exist as a verb, I copilot a plane, and Copilot can exist as a software product, and as a helper in a software product that is itself a software product that helps you use the software product it is a helper to

So Copilot copilot! could be an imperative for Copilot to Copilot, and Copilot Copilot could be a description of a software product that helps people use a software product named Copilot, but the second is not really grammatically correct as a sentence, whereas the imperative is.

So in the end I guess you could have a Copilot Copilot..[infinite Copilots]..copilot!