BC and AD as a test of retrospective labels

Does converting ancient dates into BC and AD create the same retrospective-label problem as pre-dreadnought?

It is also a later framework, but BC and AD provide a common dating system and are less objectionable here than naming earlier battleships after HMS Dreadnought.

A viewer asks whether BC and AD are also retrospective labels, since ancient people did not count down toward a zero point. Historians translate dates into a shared modern system, while alternatives such as Roman year numbers for Roman events would quickly become confusing. BC and AD remain useful even for subjects farther back in time. In this comparison, that chronological convention makes more sense than naming earlier battleships after HMS Dreadnought, although both impose later frameworks on the past.