At this very second, you are on a narrow ledge between life and death.
You probably don't feel it, but there's an incredible amount of activity going on inside you, and this activity can never stop.
Picture yourself as a Slinky falling down an escalator moving upwards.
The falling part represents the self-replicating processes of your cells.
The escalator represents the laws of physics driving you forwards.
To be alive is to be in motion but never arriving anywhere.
If you reach the top of the escalator, there's no more falling possible, and you are dead forever.
Somewhat unsettlingly, the universe wants you to reach the top.
How do you avoid that?
And why are you alive?
