It is almost impossible to envisage the future without taking AI into account, yet legal norms and regulation around its development are largely absent. A global treaty on AI use and regulation can provide a framework to deal with novel challenges in a more reasonable, practical and predictable manner.
The scheme would lead to different prices within the EU for the same or similar products, potentially flouting the WTO principle of non-discrimination. Any major legal problem may well place a stigma on the project, and provide the best weapon to critics and foot-dragging countries to derail it.