I think there a strong case of prescience there. It is not unreasonable that we will have systems whose time tracks to the beginning of the computing epoch in 1

I think there a strong case of prescience there. It is not unreasonable that we will have systems whose time tracks to the beginning of the computing epoch in 1970 long after we forget what 1970 was (assuming we don't kill ourselves first). Just think of all the layers above that today and add a few thousand years.