There are, in fact, two monsters.
The one that devours us.
The one we become.
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The one outside.
The one inside.
Do the math.
Is life short enough to outrun either one of them?
It seems that our only chance is a quick sprint. A short burst of speed might put us beyond their grasp for an instant.
On a long enough timeline, the survival rate for everyone drops to zero.
I know this because Tyler knows this.