This is a sort of lazy Ask HN: but in your experience, what is more useful / valuable - nanosecond representation, or years outside the nano range of something

This is a sort of lazy Ask HN: but in your experience, what is more useful / valuable - nanosecond representation, or years outside the nano range of something like 1678-2200 I don't do "proper" science so the value of nanoseconds seems limited to very clever experiments (or some financial trade tracking that is probalby even more limited in scope). But being able to represent historical dates seems more likely to come up? Thoughts?