What can happen in a second

A breath.  A blink.  A birth.  A death.  Supreme happiness.  The world crashing down.  An accident.  The most important decision of a life.  A puff.  A drink.  A text.  Falling asleep.  The turn of a page.  Finishing the whole book.  The start of tumultuous applause.  The first tear rolling down a cheek.  A kiss on the hand.  The smile that starts a laugh.  The first step out the door.  The last twinkle of a star.  Anything can happen in a second.