Because the universe is widening.

The time won't flies.
Twirling back to the past.
Disclose the curtain of this story.
If I can, I will live that time forever. 

People would rather to look back, why don't we keep moving on?

The universe is widening. Moving.
The Earth is rotating. Moving.

We live in a kinda hard life, hmm?
When everything's going inversely.
Black when it's white.
Right when it's wrong.
Honest when it's dishonest.