We are asymptotically approaching "The Bottom"..

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12. Most of us will not live to see the bottom.

The bottom might be this: the destruction of the planetary ecosystem to the point where few, if any, human beings survive. If any survive, it will be those with a combination of huge wealth, incredibly good luck, and/or just the foresight to create and escape in time to a bunker sufficient to survive the cataclysm. The cataclysm most likely will involve nuclear weapons. That said, if few enough of those survive, and the damage is widespread enough, they won't last long, and the true "bottom" for homo sapiens will be extinction. The "bottom" for the planetary ecosystem? I guess in that scenario it is debatable - but I would put it at the point where recovery can begin (species survive and slowly, new species evolve to live in the new reality). That assumes any sort of recovery for biological life CAN occur. If not, then "bottom" is when all biological life on planet Earth is dead.