No, my point is you accused me of lying at the drop of a hat for no good reason, and that this is demonstrably not true. Don't try and spinelessly slime your way out of that. And no, they I won't run out of IDs for them. "Potentially" anything can happen, but it won't happen here. After five year the furthest sequence is 0.86% on its way of being full.
> my point is you accused me of lying at the drop of a hat for no good reason
I said you described fictional scenario, and it appears to be true, your table ID fields are very different than timezone, country and user_id.
the point is that some/many of those ids are not timezone and country, and potentially can grow high in cardinality.