The two pivotal ‘dates’ are based a very broad scientific estimates; the latter being arrived on a possible assumption that ‘nothing else happens’, which in our Universe is stretching it a bit.
The maths are replete with rounding ups and downs to suit the narrative. This is therefore not a serious mathematically based socio-environmental statement. It is a speculative musing intent on giving one sense of perception of ‘Our’ place on this planet.
Most of us will be familiar with the old saw about the history of Humanity being placed in the context of a 24 hr clock. I never cared for this, because it was based on the assumption that at midnight there was no need to go any further because we had arrived…yea! And the 77 seconds it took for us to get there was all you needed to know.
If we ignore this monumental piece of vanity and consider a possible Life of the planet Earth, we see a different alternative. So let us look at the figures
Age of Earth to date = 4.5 billion years
Remaining Life Expectancy of Earth = 7.5 billion years (then falls into the Sun)
Total Estimated Life of Earth = 12.00 billion years
24 Hour clock
1 hour = 500,000,000(0.5 billion) years
Each quarter on clock (1/4 of an Hour)= 125,000,000 Million years
Each minute on a clock (1/15 of quarter)= 8,333,334 Million years
Each second on a clock (1/60) = 138,890 thousand years
So now we have arrived at the rough figure of 138,890 years per second, let us consider Humanity in the scheme of things. Now I am not going to inflate us with the arguable time we’ve been around, scratching, surviving, hunting and gathering. I am going to fast forward to our much vaunted ‘civilised ‘period which is when we started to farm, build communities, tear up the land and fight wars. This is estimated at 12,000 years ago. Divide that figure by 138,890 and you get a time of 0.0864 of a second. That is all we’ve racked up so far and even if we concentrate at making things right and double that it will still only be .0.1728 of a second. Still a long way to go to get to the magic 1 second. 114,890 years as an estimate.
Some might say we have achieved so much in such a short space of time. I would argue, let’s just count another 0.00864 (1,200 years) of a second before we start celebrating our speck of existence.
Conclusion: If these figures unsettle you, then feel free to find another interpretation. Scientists, Historians, Economists and Sociologists do this all the time.
Addendum: If you are a writer, don’t be discouraged by this, you are part of the Quantum World and must work on the Planck Scale