Because we, the great and all-knowing 2018 Edition of Humans, have made it that way.
It's a mystery, shrouded in complexity, wrapped in an enigma, dipped in existential dread.
Perhaps it's the fault of our calendars, with their pesky little numbers and their annoying little days.
Why Can't We All Just Get Along? Why Does it Have to be So Nerdy? Why Does it Have to be So Bright?