I agree, but (I don’t want to start any flame wars here) there is a well known narrative that explains the AD and BC. It has been around in 2000 years and will probably be around some 1000 years more.

In Sweden we have been discussing about what type of signs should we put up to warn for nuclear waste. Will people in thousand of years be able to understand and decide the warnings?

Same with time concepts, the future must have a sporting chance to understand what we where talking about.