Si el plan A no te funciona, recuerda que aún te quedan otras 26 letras
The same process works going forward in time; in essence every one of us who has children and whose line does not go extinct is suspended at the center of an immense genetic hourglass. Just as we are descended from most of the people alive on the planet a few thousand years ago, several thousand years hence each of us will be an ancestor of the entire human race—or of no one at all.
The mosaic of our shared ancestry can be drawn forwards and backwards. Not only can we look to the past and cherish our shared ancestors, but we, too, will become the shared ancestor of everyone a thousand years beyond us.
You know … if we have kids.
(via The Atlantic)