Rbecker,
Interesting perspective on the timeline of our lives that you bring up.
Mark Twain wrote a short story about a wise old bug counseling a newborn bug about the vast and long journey through life ahead, the experiences, the hardships. Advice from the old generation to the new generation in passing.
The bugs had a life span of one minute. The old bug was getting near the 60 second mark and trying to pass on wisdom to a fresh generation, about to embark on a new seemingly endless 60 second voyage toward infinity.
Life goes on in our local environment from milliseconds to thousands of years and toward conditional immortality if you include mushrooms.
Our three score and ten may be looked on as a flash in the pan by other life forms out there that live for thousands of years. No matter where we are, anything manifest must reconcile with the Reaper (not the DAW). It is not the quantity of time we have spent but the quality of time we have spent.
John