The long history of life on Earth offers repeat confirmation that it is impossible to save all lives. The shears of chance and stupidity confirm that not only do species go extinct, but that 99% of the four billion species (give or take) that evolved on Earth have gone extinct6. Stars die, black holes digest galaxies, and large meteors could wipe out most planetary life. Against this relentless churn of physical laws stands the possibilities embodied by intelligent civilization.
