Does it makes sense to expect/hope that one day we will measure the age of the universe (in Earth's frame of reference for example) much more precisely, down to sub-year precision? Is there an absolute 0 for time (kind of like for temperature) that we could use instead of the year of our Lord or some other year?
Can we at least talk about a theoretical absolute age even if we might not be able to determine what it is? I'm thinking that even if we had perfect clocks counting seconds from the very beginning of the universe, due to relativity they might have readings that differ by years or more, making an absolute time impossible to set or maybe the expansion of the universe means this is a nonsensical question to ask. Is asking about absolute time like asking about absolute position?